Baghdad: the City of Peace

In the year 762 CE, on the western bank of the Tigris River in the flat alluvial plain of central Iraq, the Abbasid Caliph al-Mansur marked out the foundations of a new city. He called it Madinat al-Salam — the City of Peace — and he built it in a perfect circle. Within a century it would be the largest city in the world outside of China, the intellectual capital of the Islamic civilization, and quite possibly the most sophisticated urban center on earth. It would give the world algebra, advanced optics, the first systematic medical encyclopedia, and the translations that would eventually spark the European Renaissance. Its destruction, when it came, would be reckoned among the great catastrophes of human history. That city is Baghdad: the ancient name that belonged to the village on whose ruins al-Mansur built his dream, and the name that has never been given up.

Baghdad today is the capital of Iraq and one of the largest cities in the Arab world, with a population estimated at between seven and eight million people. It is a city of extraordinary historical depth and painful recent memory: the seat of a civilization that once led the world, the victim of one of history's most destructive sacks in 1258, the target of American bombing campaigns in 1991 and 2003, the arena of a brutal sectarian civil war in the mid-2000s, and the frontline against the Islamic State in the 2010s. To visit Baghdad today is to move through layers of history so compressed and so violent that it is difficult to hold them all in mind at once. The Abbasid palace district and the modern blast-wall neighborhoods of the Green Zone share the same riverside. The Iraq Museum, one of the world's great repositories of Mesopotamian civilization, sits in a city still dealing with the scars of war and looting. Baghdad carries more history than almost any city on earth, and bears more recent wounds than most.

The name Baghdad itself predates the city al-Mansur built. In Middle Persian, the name has been interpreted as meaning Gift of God or Garden of God — the bagh element deriving from the Persian word for god or garden, and the dad element relating to the concept of gift. The village of Baghdad existed before the Arab conquest, a modest settlement in the agricultural landscape of the Tigris valley. Al-Mansur chose its location for its practical advantages: the confluence of Tigris and Euphrates canal systems made it a natural hub of water transport; the surrounding agricultural land was fertile; and the location was sufficiently removed from the previous Umayyad power centers in Damascus and the Arabian Peninsula to symbolize the new dynasty's break with the past.

The Abbasid Revolution and the Founding of Baghdad

The city of Baghdad was born from a revolution. The Abbasid Caliphate, which came to power in 750 CE by overthrowing the Umayyad dynasty, represented a profound shift in the character of Islamic civilization. The Umayyads had been an Arab dynasty that maintained a strong distinction between Arab Muslims and non-Arab converts to Islam, including the enormous Persian-speaking population of Iran and Iraq. The Abbasids drew their revolutionary energy precisely from this aggrieved non-Arab Muslim population, particularly the Persians of Khorasan. When the Abbasids came to power, they made clear that the new caliphate would be universal in a way the Umayyad regime had never been: all Muslims, regardless of ethnicity, would be equal before God and before the caliph.

The Abbasid Caliph al-Mansur, the dynasty's second caliph and its true institutional founder, recognized that a new dynasty proclaiming universal Islamic values needed a new capital — one not associated with the Arab tribalism of Damascus or the early Islamic community of Medina. He scouted locations along the Tigris and Euphrates for the perfect site, and in 762 CE, after reportedly consulting with local Christian monks about the climate and conditions, he chose the site on the west bank of the Tigris where the village of Baghdad stood.

On July 30, 762 CE, construction began on what would be the most ambitious urban project the early Islamic world had attempted. Al-Mansur's city was circular, a design unprecedented in the Islamic world and drawing on ancient Iranian and Mesopotamian urban traditions. The circular city — known as the Round City, or Madinat al-Salam — was approximately 2 kilometers in diameter and was enclosed by three concentric rings of walls with four gates opening to the cardinal directions: northwest toward Khurasan and Central Asia, northeast toward the Khorasan Road, southeast toward Basra and the Persian Gulf, and southwest toward Kufa and the Arabian Peninsula. Each gate had its name: the Khorasan Gate, the Basra Gate, the Kufa Gate, and the Syrian Gate. The road between each set of gates passed through the center of the city, and at the very center stood the two structures that embodied Abbasid power: the Great Mosque and the Caliph's Golden Gate Palace, topped with a distinctive green dome that became the visual symbol of Abbasid authority.

Construction of the Round City was completed by approximately 766 CE. The scale of the enterprise was extraordinary: al-Mansur reportedly employed a hundred thousand workers — architects, engineers, laborers, and artisans — in the construction. The result was a city planned from its inception as a statement of imperial order and divine authority, a geometric perfection in earthly form.

The Growth of Baghdad: the Largest City in the World

Baghdad grew with astonishing speed. The Round City was not intended to be a residential district for the general population; it was a governmental and ceremonial complex. Markets, residences, and the commercial life of the new capital spread rapidly beyond the walls of the Round City in all directions, both on the west bank of the Tigris and, increasingly, on the east bank as well. Suburbs proliferated and eventually became cities in themselves. The east bank suburb of Rusafa, developed in the reign of al-Mansur's successor al-Mahdi, became a significant city in its own right.

By the early ninth century, at the height of the caliphate's power, Baghdad had grown into a metropolis of extraordinary size. Contemporary estimates and modern historical research suggest a population somewhere between 500,000 and 1,000,000 — making it comfortably the largest city in the world west of China and one of the two or three largest cities on earth. Only the Chinese capitals Changan and Luoyang may have rivaled it in population. No city in the Christian world came close: Rome, in the ninth century, had perhaps 20,000 to 30,000 inhabitants; Constantinople, the largest Byzantine city, had perhaps 300,000 at its peak.

The size of Baghdad was matched by its complexity and sophistication. The city had hospitals, one of the earliest in the Islamic world, where physicians practiced medicine based on a synthesis of Greek, Persian, and Indian medical traditions. It had a sophisticated water supply and waste disposal system. Its bazaars were organized by trade, with specialized markets for books, paper, money-changers, textiles, and every commodity that the trade routes of the Islamic world could provide. The Tigris was busy with boats bringing goods from the Persian Gulf and beyond. Land routes converging on Baghdad brought goods from India, Central Asia, China, East Africa, and the Mediterranean world.

The physical diversity of Baghdad's population was astonishing. Arabs and Persians were the most numerous, but the city also contained substantial communities of Nestorian Christians, Jews, Zoroastrians, Hindus, Buddhists, and members of practically every other community connected to the vast Islamic world trade network. The language of administration and high culture was Arabic, but Persian was the language of much of the court culture, poetry, and bureaucracy. The Caliph's court was a multilingual environment where Greek scientific texts, Persian literary traditions, Indian mathematical knowledge, and Syriac Christian scholarship all met and interacted.

Harun Al-Rashid and the Golden Age

The reign of Harun al-Rashid (786-809 CE) represents the cultural peak of Abbasid Baghdad and the moment when the city's reputation became truly global. Harun al-Rashid was, by contemporary accounts, a caliph of genuine culture and refinement as well as considerable political ability. He was a poet, a patron of poets and scholars, a pious Muslim who performed the hajj multiple times, and a ruler who engaged directly with the intellectual currents of his time. He was also a man of considerable complexity: capable of great generosity and fierce cruelty, adept at playing the factions of his court against each other, and presiding over a period of both great achievement and considerable political instability.

Harun al-Rashid is the caliph most associated in world culture with the tales of the Thousand and One Nights — the collection of stories known in Arabic as Alf Layla wa-Layla, in which Harun al-Rashid himself appears as a character, wandering Baghdad in disguise to observe the lives of his subjects. The stories of Scheherazade, Aladdin, Sindbad the Sailor, and Ali Baba are all embedded in this rich narrative tradition that took Baghdad under the Abbasids as its symbolic setting. The image of Baghdad that the Thousand and One Nights projects — a city of extraordinary wealth, intrigue, magic, and human drama — is both a fantasy and a reflection of a real time and place, the early Abbasid capital at the height of its power.

In the realm of actual diplomatic and political history, Harun al-Rashid's court engaged with the wider world in ways that underscore Baghdad's global importance. Most famously, he exchanged diplomatic gifts with the Frankish king Charlemagne, who was simultaneously building his own claim to universal Christian sovereignty in the West. The gifts exchanged between the two monarchs were symbolic of the contact between the two great power centers of the ninth-century world. Among the gifts Harun sent to Charlemagne was a white elephant named Abul Abbas — a gift of extraordinary symbolic weight, given the rarity and value of elephants in the medieval world — along with a water clock of intricate mechanical ingenuity. Charlemagne's own embassies to Baghdad returned with gifts that astonished the Frankish court.

Harun al-Rashid also greatly expanded the institution that would become the intellectual centerpiece of Abbasid civilization: the Bayt al-Hikma, the House of Wisdom.

The House of Wisdom: the Greatest Library of the Medieval World

The Bayt al-Hikma — the House of Wisdom — was the institutional expression of the Abbasid commitment to universal knowledge. Its origins lay in a translation bureau established under earlier caliphs, but it was under Harun al-Rashid and especially under his son and successor al-Ma'mun (r. 813-833 CE) that it became the greatest intellectual institution of the medieval world.

Al-Ma'mun, who was himself deeply interested in philosophy, science, and theology, transformed the House of Wisdom into a research and translation center on a scale that had no precedent in Islamic history. He dispatched agents to Constantinople and other centers of classical learning to acquire Greek manuscripts. He commissioned systematic translations of Aristotle, Plato, Galen, Ptolemy, Euclid, and the entire corpus of Greek scientific and philosophical knowledge into Arabic. He brought to Baghdad the greatest scholars of the age — Muslim, Christian, Jewish, and Zoroastrian — and set them to work translating, commenting upon, and extending this inherited body of knowledge.

The results were transformative. The translations from Greek into Arabic preserved texts that would otherwise have been lost forever to the world — works of Aristotle's biology, Galen's medicine, and Ptolemy's astronomy that survived into the modern world precisely because they were translated and commented upon in Baghdad before the Greek originals perished. The scholars of the House of Wisdom did not merely translate; they advanced. Al-Khwarizmi, working in Baghdad in the early ninth century, developed algebra as a systematic mathematical discipline. His book Al-Kitab al-mukhtasar fi hisab al-jabr wal-muqabala gave the world the word "algebra" (from al-jabr in the title) and his own name, latinized as Algorismus, gave the world the word "algorithm." The physician and polymath al-Razi (Rhazes) wrote comprehensive medical encyclopedias that influenced European medicine for centuries. The philosopher al-Kindi synthesized Greek philosophy and Islamic theology in ways that shaped Islamic intellectual life for generations. Ibn al-Haytham made fundamental advances in optics, establishing principles about the nature of light and vision that prefigured later European discoveries.

The House of Wisdom represented something that the medieval world had never seen before: a publicly funded, multi-religious, multi-linguistic institution dedicated to the systematic advancement of human knowledge across all fields. Its scholars argued with each other across religious lines. A Christian physician translated Aristotle's biological works; a Muslim mathematician built on Hindu numerical concepts to develop algebra; a Jewish philosopher contributed to Aristotelian commentaries. The intellectual culture of the House of Wisdom was, in the most literal sense, civilizational.

Ibn Sina and the Baghdad Intellectual Tradition

The intellectual tradition that the House of Wisdom created extended far beyond Baghdad itself and continued long after the institution's physical destruction. Among the figures who drew on and contributed to this tradition was Ibn Sina — known in European history as Avicenna — whose Canon of Medicine became the standard medical textbook in both Islamic and European universities for six centuries. Ibn Sina was born in Central Asia and spent significant time in Isfahan, but the intellectual tradition in which he worked was inseparable from the Baghdad achievement. His synthesis of Aristotelian philosophy and Islamic theology, his systematic approach to medicine, and his contributions to logic and natural science are direct expressions of the Abbasid intellectual program.

Similarly, the historian al-Tabari, the geographer al-Masudi, the mathematician al-Biruni, and the physician Ibn al-Nafis — who discovered the pulmonary circulation of blood three centuries before William Harvey — all worked within or in direct dialogue with the intellectual tradition that the Abbasid caliphs and the House of Wisdom had created.

The systematic translation of Indian mathematical texts in Baghdad produced the adoption of what Europeans would call "Arabic numerals" — actually Hindu numerals transmitted through Arabic — the positional decimal number system that displaced Roman numerals and made modern mathematics possible. The zero, which the Hindu mathematical tradition had developed, came to the West through Baghdad. Without the Baghdad transmission, it is difficult to imagine how European mathematics, science, and ultimately technology could have developed as they did.

The Abbasid Caliphate at Its Zenith

At its peak in the ninth and early tenth centuries, the Abbasid Caliphate governed a territory stretching from Spain and Morocco in the west to the borders of India and the fringes of China in the east. Its revenues sustained a court of legendary magnificence in Baghdad. The caliph's palace complex on the Tigris was said to be of a scale that astonished foreign visitors: pools of mercury, mechanized golden trees with silver birds that sang, rooms filled with gold and precious stones, a retinue of thousands of servants, soldiers, and officials. Whether all of this can be taken literally is uncertain, but the general picture of extraordinary luxury and display is consistent across many independent sources.

The Caliphate under the Abbasids developed sophisticated administrative machinery. A professional bureaucracy, staffed largely by Persians, administered the enormous empire's finances, postal systems, and provincial governance. The Islamic legal system was systematized and codified. Islamic philosophy, theology, and jurisprudence were developed into mature intellectual disciplines. The great schools of Islamic law — the Hanafi, Maliki, Shafi'i, and Hanbali madhhabs — took their definitive form during the Abbasid period, working out detailed rules for almost every conceivable aspect of Muslim life.

The Abbasid caliphate was never without challenges. Political fragmentation came steadily: provincial dynasties in Iran, Egypt, and the far west of the empire established de facto independence while maintaining the fiction of Abbasid sovereignty. Military commanders from the Turkish slave-soldier class, the ghulam or mamluk, gradually assumed real power in Baghdad itself while caliphs became increasingly ceremonial figures. By the tenth century, the real power in Baghdad was held by the Buyid dynasty, a Shia Iranian family from the Caspian region who kept the Sunni Abbasid caliphs as symbolic figureheads. This reduced the caliphate to a religious institution rather than a political one — but it sustained it, which is the reason the Abbasid Caliphate continued to exist at all until the Mongol catastrophe of 1258.

The Mongol Destruction: February 1258

The event that ended the Abbasid Caliphate, devastated Baghdad, and reverberated through the Islamic world for generations occurred in February 1258. The Mongol army under Hulagu Khan — a grandson of Genghis Khan and the ruler of the Ilkhanate, the western branch of the Mongol Empire — besieged Baghdad beginning in late January 1258.

The circumstances of the siege were shaped by the political and military situation of the Mongol Empire at that moment. The Mongols had been extending their empire westward across Central Asia and Iran for decades, and the great Abbasid Caliphate represented the next great power in their path. Hulagu sent messages to the Caliph al-Musta'sim demanding submission. The caliph, advised by a court that had perhaps not fully comprehended the Mongol threat, refused to submit. The siege followed.

Baghdad fell to the Mongols on February 10, 1258, after a siege of approximately two weeks. What followed has been described as one of the most catastrophic events in the history of Islamic civilization. The sack of Baghdad lasted approximately forty days. The estimates of those killed range from ninety thousand at the lower end of contemporary accounts to figures reaching into the hundreds of thousands. The Caliph al-Musta'sim was captured. According to the widely repeated account, the Mongols executed him by wrapping him in a carpet and having horses trample him to death — the Mongol custom, it was said, of ensuring that royal blood did not touch the ground.

The House of Wisdom was destroyed. Its collection of books — perhaps the largest single collection of manuscripts in the world at that time, representing the accumulated scholarly output of five centuries of Islamic civilization — was thrown into the Tigris River. Medieval accounts state that the river ran black with ink for days. Whether this is literal or symbolic, the loss was catastrophic and irreversible: texts that existed only in the Baghdad library were gone forever.

The human cost was staggering. The city's population was killed, enslaved, or fled. The elaborate irrigation systems of the Tigris valley, which had sustained the agricultural economy of Mesopotamia since ancient Sumerian times and which the Abbasids had maintained and improved, were disrupted and in some cases permanently destroyed. The agricultural productivity of the Mesopotamian heartland did not recover to pre-Mongol levels for centuries.

Ibn Khaldun, the great fourteenth-century Islamic historian writing more than a century after the event, described the destruction of Baghdad as a catastrophe without precedent in the history of Islam. The Abbasid Caliphate, which had been the symbolic center of Sunni Islam for five hundred years, was gone. The caliph was dead. The House of Wisdom was destroyed. Baghdad, the City of Peace, would not regain anything approaching its former population for seven hundred years.

The Aftermath of the Mongol Catastrophe

The Mongol sack of Baghdad in 1258 did not simply end a dynasty. It ended an era. For five centuries, the Abbasid Caliphate had provided the Islamic world with a spiritual and political center — a fixed point around which the diverse communities, languages, and cultures of Islam could orient themselves. The caliph, even when politically powerless, was the symbolic head of the Islamic community, the heir of the Prophet, the keeper of the community's moral and legal order. With the last Abbasid caliph dead in a Mongol carpet, that center was gone.

The consequences reverberated across the Islamic world for generations. Sunni Muslims in particular faced an unprecedented crisis of political theology: if the caliphate was the divinely ordained institution of Islamic governance, what did its destruction mean? Muslim scholars wrestled with the theological implications in ways that shaped Islamic political thought for centuries afterward. Practically, the destruction of Baghdad disrupted the networks of Islamic scholarship, commerce, and administration that had connected the far-flung corners of the Sunni world.

The Mongol Ilkhanate established control over Iraq, Iran, and much of the Middle East after 1258. Hulagu Khan made Maragha in northwestern Iran his capital rather than Baghdad, further diminishing the city's status. Baghdad became a provincial center in the Mongol empire, its population a fraction of what it had been. The irrigation systems of the Tigris valley were damaged severely enough that the agricultural productivity of the region was permanently diminished compared to its Abbasid-era peak. The complex networks of canals and dams that Abbasid engineers had maintained were neglected and in some cases destroyed, changing the agricultural landscape of Mesopotamia in ways that persisted for centuries.

The Ilkhanid Mongols eventually converted to Islam — a process completed by 1295 under Ghazan Khan — and became patrons of Islamic art and architecture. Baghdad was rebuilt to some degree and regained a measure of importance as a commercial and administrative center. But it would never recover its former status as the greatest city in the Islamic world.

Timur and the Second Destruction

Just as Baghdad was slowly recovering from the Mongol catastrophe, it was struck again. In 1401, Timur — Tamerlane — descended on Baghdad as part of his great campaign of western conquest. His treatment of the city was similar to his treatment of other cities that had resisted or defied him: mass slaughter, the destruction of monuments, and the construction of his characteristic towers of skulls. The population was again reduced, the urban fabric again damaged. This second catastrophe compounded the damage of 1258 and left Baghdad a distinctly diminished city, a shadow of the metropolis it had been under the Abbasids.

Baghdad's condition in the early fifteenth century was pitiful by comparison with its ninth-century glory. Where once a million people had lived in a city of palaces, libraries, hospitals, and schools, a much smaller population inhabited a partially ruined urban landscape. The great institutions of the Abbasid golden age — the House of Wisdom, the royal libraries, the specialized hospitals — were gone, their physical structures destroyed and their contents dispersed or lost.

The Ottoman Period: 1534 to 1917

Baghdad passed through a complex succession of post-Mongol rulers before it was conquered by the Ottoman Sultan Suleiman the Magnificent in 1534. The Ottoman conquest incorporated Baghdad into the Ottoman Empire, where it would remain — with intervals of Safavid Persian control — for nearly four centuries, until the British occupation of 1917.

The Ottoman period was not one of Baghdad's greatest. The city remained a relatively minor provincial center in the vast Ottoman Empire, governed by appointed pashas whose tenures were often short and whose primary concern was maintaining order and collecting revenue. The persistent conflict between the Ottoman Empire and the Safavid Persian Empire over control of Iraq meant that Baghdad changed hands several times: the Safavids held it from 1623 to 1638, before the Peace of Zuhab returned it to Ottoman control and established the boundary between Ottoman Iraq and Safavid Iran roughly where the Iran-Iraq border stands today.

Nevertheless, the Ottoman period left significant marks on Baghdad's urban landscape. The great shrine mosques of the Shia tradition — particularly the Mosque of al-Kadhimiya, containing the tombs of two Shia imams, built in its current form primarily during the Safavid period but maintained and embellished under the Ottomans — remained important centers of Shia pilgrimage. Baghdad sat on the fault line between the Sunni Ottoman world and the Shia Persian world, and its religious geography reflected this complexity. The city had a substantial Shia population, numerous Jewish communities — whose presence in the Tigris valley stretched back to the Babylonian captivity twenty-five centuries earlier — and Armenian and other Christian minorities.

The nineteenth century brought reforms to Baghdad as it did to much of the Ottoman Empire. The Tanzimat reforms of the 1830s-1870s sought to modernize the empire's administrative, legal, and military institutions on something approximating a European model. Baghdad received some physical improvements: better roads, limited sewage infrastructure, and expanded commerce as British steamships began operating on the Tigris from the 1830s, connecting Baghdad more directly to the Persian Gulf trade. By the late Ottoman period, Baghdad had a population of perhaps 150,000 to 200,000 — significant, but incomparably smaller than the Abbasid metropolis had been.

The British Conquest and the Mandate

The First World War brought the Ottoman Empire's control of Mesopotamia to an end. British and Indian forces of the Mesopotamian Expeditionary Force had been fighting their way up the Tigris valley since 1914. The campaign was marked by some of Britain's most serious military disasters of the war — most notably the surrender of a British force at Kut in April 1916, one of the most humiliating British military defeats in modern history. But the campaign recovered, and on March 11, 1917, General Sir Frederick Stanley Maude led British and Indian forces into Baghdad without significant resistance.

Maude's famous proclamation to the people of Baghdad — "Our armies do not come into your cities and lands as conquerors or enemies, but as liberators" — set the rhetorical tone for what became a deeply complex and often contradictory occupation. The British dismantled the Ottoman administrative machinery and installed a military occupation government. After the war, Iraq became a British mandate territory under the League of Nations framework, with Britain holding mandatory power over a newly defined country whose borders were drawn by British officials with complex and not entirely consistent considerations of geography, ethnicity, religion, and strategic interest.

The British Mandate faced immediate and sustained resistance. The Iraqi Revolt of 1920 — a nationwide uprising against British rule that drew on a coalition of Shia tribal confederacies, Sunni urban nationalists, and Kurdish leaders — shocked London with its scale and cost. The British response was to institute a less direct form of governance: a monarchy under the Hashemite Prince Faisal, who had been expelled from Syria by the French and was available for the role. Faisal I became King of Iraq in 1921, ruling a constitutional monarchy in which the British retained considerable actual power through advisers, treaty rights, and continued military presence.

Baghdad under the mandate and early Hashemite period was a rapidly changing city. The population grew, infrastructure expanded, and the familiar tensions of a post-colonial state — between monarchy and nationalists, between Sunni and Shia, between Arab and Kurd — shaped political life. Oil was discovered in significant commercial quantities in Iraq in 1927, with the great fields of Kirkuk beginning production, and the prospect of oil wealth added another dimension to the political complexities of the new state.

The Hashemite Kingdom and the Path to the Republic

The Kingdom of Iraq achieved formal independence in 1932, when it became the first Arab country under League of Nations mandate to be granted independence. The British retained significant influence through treaty obligations and military bases, and British influence remained deeply resented by Iraqi nationalists of various political colorations.

The Hashemite period produced genuine development in Baghdad. Under King Ghazi (1933-1939) and during the long regency and reign of King Faisal II (1939-1958), the city expanded physically as oil revenues began to flow more substantially. New government buildings, hospitals, and schools were built. The Iraq Museum, established in the 1920s, developed into a serious institution whose collections of Mesopotamian antiquities were among the most important in the world. Baghdad acquired the infrastructure of a modern capital: a central railway station, improved roads, expanded utilities.

But political stability remained elusive. The 1948 Arab-Israeli War, in which Iraqi forces participated, inflamed nationalist sentiment and Jewish communities in Baghdad, which had existed in the city for two and a half millennia, faced increasing hostility. The vast majority of Iraq's Jewish community emigrated to Israel and other destinations in 1950-51, their properties confiscated or abandoned, ending one of the most ancient Jewish communities in the world. For Baghdad, it was the erasure of a community whose presence stretched back to the Babylonian captivity.

The political instability of the Hashemite period culminated in the Revolution of July 14, 1958. General Abd al-Karim Qasim led a military coup that killed King Faisal II and his prime minister, declared Iraq a republic, and ended the monarchy. The coup was greeted with enthusiasm by much of the population, who had grown frustrated with the perceived subservience of the Hashemite regime to British and Western interests. Qasim was a complex figure: a nationalist and socialist who implemented significant land reform and expanded social services, but also a political survivor who played his rivals against each other with decreasing success. He was overthrown and killed in a Ba'athist coup in February 1963.

The years from 1963 to 1968 were characterized by political instability and coups. The Ba'ath Party, a pan-Arab nationalist and socialist movement founded in Syria in the 1940s, gained and lost power in 1963 before returning to power in another coup in 1968. The Ba'athist regime of 1968 proved far more durable than its predecessors. Under the Ba'ath, Iraq was modernized with remarkable speed: oil revenues, particularly after the dramatic price increases of 1973, funded enormous investments in education, health, infrastructure, and industrialization. Female literacy rates rose dramatically. Iraq built universities, hospitals, and roads at a pace that astonished outside observers. Baghdad itself was extensively modernized, with new government districts, highways, and public buildings.

Within this modernizing Ba'athist state, one figure gradually emerged as the dominant force in Iraqi politics: Saddam Hussein.

Saddam Hussein and the Ba'athist Era

Saddam Hussein was born in 1937 near Tikrit, in the heartland of Sunni Arab Iraq. He joined the Ba'ath Party as a young man and participated in the 1959 assassination attempt against General Qasim, after which he fled to Egypt. He returned after the first Ba'athist coup of 1963 and gradually built his position within the party apparatus over the following decade, operating principally through the security and intelligence services. By 1968, when the Ba'ath returned to power, Saddam was already one of the most powerful figures in the new regime, and by the early 1970s he was the de facto ruler of Iraq even though he did not formally become president until 1979.

When Saddam formally assumed the presidency on July 16, 1979, he immediately consolidated power with brutal efficiency. In his first weeks as president, he presided over a mass purge of the Ba'ath Party: in a chilling scene recorded on video and preserved, senior party members were forced to watch as their colleagues were called out of the assembly and taken away. Hundreds were executed. The message to every member of the Iraqi political class was unmistakable.

The Ba'athist state Saddam built was a totalitarian system of extraordinary reach. A vast network of security and intelligence services penetrated every level of Iraqi society. The cult of personality around Saddam became the defining feature of Iraqi public life: his image appeared on billboards, murals, and public buildings throughout Baghdad and across the country. The party's ideology of pan-Arab nationalism and secular socialism was propagated through the education system and the media. Political opposition was suppressed with extreme violence.

Yet the Ba'athist period also produced genuine economic and social development, particularly in the 1970s when oil revenues were high. Iraq under Saddam built an educational system that achieved high literacy rates. It constructed hospitals, roads, and universities. Women participated in public life and professional careers in ways that were unusual in the Arab world at the time. Baghdad became a genuinely modern city, with well-maintained infrastructure, active cultural institutions, and a cosmopolitan professional class.

The Iran-Iraq War: 1980 to 1988

On September 22, 1980, Saddam Hussein launched a massive military invasion of Iran. The decision was driven by multiple factors: Saddam feared that the 1979 Islamic Revolution in Iran, which had brought Ayatollah Khomeini to power with an explicitly Shia Islamist ideology, would inspire Iraq's Shia majority to revolt against the Sunni-dominated Ba'athist state. He also saw an opportunity to seize the oil-rich Iranian province of Khuzestan while Iran was in revolutionary disorder. And he had long-standing ambitions to establish Iraq as the dominant power in the Gulf region.

The war that followed was one of the bloodiest conflicts of the late twentieth century. Iran's revolutionary government proved far more resilient than Saddam had anticipated, mobilizing mass armies — sometimes including child soldiers — in human wave attacks that eventually recovered the territory lost in Iraq's initial invasion. The war settled into a grinding stalemate reminiscent in some ways of the First World War: static front lines, artillery exchanges, and the use of chemical weapons by Iraq against both Iranian forces and, in the war's final phases, against Iraq's own Kurdish population in the north.

The toll was catastrophic. Estimates of total deaths range from five hundred thousand to over one million. The cities of both countries were repeatedly bombed. Oil installations were targeted, pipelines disrupted, and the Gulf itself became a war zone. The war ended in August 1988 with a United Nations-mediated ceasefire that essentially restored the prewar borders — producing, as Saddam himself later admitted, nothing concrete in exchange for hundreds of thousands of lives.

For Baghdad, the war years were a period of heightened nationalism, economic strain, and continued political repression. The city's infrastructure was largely preserved from direct attack, but resources that might have developed the city were diverted to the war effort. The war also deepened sectarian tensions within Iraq that the Ba'athist state could suppress but not resolve.

The Gulf War and the Decade of Sanctions

On August 2, 1990, Saddam Hussein invaded Kuwait, seizing the small but oil-wealthy emirate to the south. The invasion was a catastrophic miscalculation. The United States, leading a coalition of nations including most Arab states, responded with an international ultimatum and, when Saddam refused to withdraw, with a massive military campaign. Operation Desert Storm, launched in January 1991, began with an air campaign that systematically targeted Iraqi military infrastructure, power generation facilities, bridges, and communications systems. Baghdad suffered significant damage in the air campaign, with electricity and water infrastructure severely disrupted.

The ground war that followed in February 1991 lasted approximately one hundred hours before a ceasefire was declared. Iraqi forces were expelled from Kuwait, and the coalition stopped short of Baghdad. Saddam Hussein remained in power, but the terms imposed on Iraq after the war were crushing: international sanctions administered by the United Nations, which blocked most Iraqi trade and severely restricted oil revenues. The goal of the sanctions was to prevent Iraq from rebuilding its weapons programs and ultimately to pressure the regime into compliance with United Nations resolutions.

The decade of sanctions from 1991 to 2003 had devastating consequences for the Iraqi population, including Baghdad's. With oil revenues severely restricted, the Iraqi government could not maintain even the basic infrastructure that the Ba'athist period had built. Hospitals ran short of medicines and equipment. Schools deteriorated. The food supply was disrupted despite the UN's Oil-for-Food program, which was intended to allow limited oil sales to fund humanitarian needs. Independent studies conducted during this period estimated that hundreds of thousands of Iraqi children died from preventable diseases and malnutrition — consequences of the combination of Saddam's unwillingness to prioritize civilian welfare and the blunt instrument of comprehensive economic sanctions.

Baghdad in the 1990s became a city of decay. Buildings that had been modern and well-maintained in the 1970s and 1980s fell into disrepair. The professional middle class that had been the pride of the Ba'athist development program was impoverished or emigrated. The infrastructure of the city — electricity, water, sewage — became increasingly unreliable. Sectarian and ethnic tensions, suppressed under Ba'athist totalitarianism, found increasingly indirect expressions.

The 2003 Iraq War: the Fall of Baghdad

On March 20, 2003, a United States-led coalition launched an invasion of Iraq, citing the alleged existence of weapons of mass destruction — a justification that subsequent investigation found to be false — and the opportunity to end Saddam Hussein's totalitarian rule. The invasion was rapid by the standards of military history. Coalition forces invaded from Kuwait in the south, and within three weeks had advanced to Baghdad itself.

Baghdad fell on April 9, 2003. The scene at Firdos Square in the Karrada neighborhood that day became one of the defining images of the early twenty-first century: a US Marine armored vehicle using a chain to pull down a large statue of Saddam Hussein while a crowd of Iraqis watched. The initial footage suggested a spontaneous popular celebration; subsequent examination showed that the crowd was smaller than the tight camera framing had implied and that the operation was partly assisted by US forces. But the symbolism was real: the most powerful visual representation of Saddam Hussein's four decades of domination was pulled from its base and dragged through the streets of Baghdad.

In the days that followed, Baghdad descended into looting on a scale that shocked the world. Coalition military forces, operating under rules of engagement that prioritized force protection over civilian property, stood by as crowds ransacked government offices, hospitals, universities, and cultural institutions. The most historically catastrophic instance of this looting was the pillaging of the Iraq Museum.

The Iraq Museum, which had been established in the 1920s and had grown into one of the greatest archaeological museums in the world, contained irreplaceable collections from the civilizations of ancient Mesopotamia: Sumerian, Akkadian, Babylonian, Assyrian, and Parthian artifacts spanning five thousand years of human history. When looters broke in during the days after Baghdad's fall, they stole or destroyed thousands of objects. Initial estimates suggested that as many as 170,000 objects had been taken or destroyed; subsequent inventory suggested the number was closer to 15,000, still one of the most significant cultural losses in the history of modern warfare. Among the stolen items were objects of extraordinary importance: cylinder seals from the third millennium BCE, ivories from the Assyrian palace at Nimrud, and the Warka Vase, a Sumerian ritual vessel dating to approximately 3000 BCE and considered one of the earliest examples of narrative art in human history.

The looting of the Iraq Museum was not merely a loss of cultural property. It was, for many Iraqis and for the scholarly community worldwide, a symbol of the failure of the United States and its coalition partners to plan adequately for the aftermath of military victory. The chaos of the occupation's early days — the looting, the collapse of public services, the disbanding of the Iraqi military which put hundreds of thousands of armed men out of work — created the conditions for the insurgency that followed.

The Insurgency, Sectarian CIVIL War, and the Rise of Isis

The years from 2003 to 2011 saw Baghdad transformed into an arena of extraordinary violence. The Sunni Arab population, which had been dominant under the Ba'athist state, faced a political settlement in which their dominance was ended by the democratic arithmetic of Iraq's Shia majority. The Shia population, long oppressed under Ba'athism, now held political power for the first time in modern Iraqi history. The Kurdish population, largely in the north, pursued de facto autonomy that would eventually become very close to independence.

In this environment, a Sunni insurgency erupted almost immediately after the US occupation began. Al-Qaeda in Iraq, the affiliate of the global jihadist movement, moved in from outside the country and successfully recruited within the aggrieved Sunni community. Its strategy was deliberately sectarian: massive bomb attacks on Shia markets, mosques, and pilgrimage routes were designed to provoke Shia retaliation and ignite a full-scale sectarian civil war. The strategy worked. By 2006-2007, Baghdad was experiencing levels of communal violence that amounted to ethnic cleansing: neighborhoods that had been religiously mixed were being homogenized by violence, as Sunni and Shia families fled areas where they were minorities. Bodies were turning up on Baghdad's streets by the hundreds every week.

The US military surge of 2007, in which additional forces were deployed and a new counterinsurgency strategy was implemented under General David Petraeus, combined with the turn of key Sunni tribes against al-Qaeda, produced a significant reduction in violence by 2008-2009. The worst of the sectarian killing ended, though violence continued at levels that would have been considered catastrophic in any other context.

The withdrawal of US combat forces in 2011 and the deteriorating governance of Iraq under Prime Minister Nouri al-Maliki created the conditions for the rise of what became the Islamic State in Iraq and Syria — ISIS, or ISIL, or Daesh in Arabic. Emerging from the remnants of al-Qaeda in Iraq, and drawing on Sunni grievances that had been inflamed rather than resolved by the post-2003 political settlement, ISIS captured Mosul, Iraq's second city, in June 2014 in a matter of days. An Iraqi army that had been hollowed out by corruption and political interference collapsed in the face of the ISIS advance. For a period in 2014-2015, ISIS controlled a territory larger than Britain, spanning northern Iraq and eastern Syria, and was advancing toward Baghdad.

Baghdad did not fall to ISIS, largely because Iran-backed Shia militias and the reconstituted Iraqi Army formed a defensive perimeter and then began pushing back. The campaign to retake Mosul, completed in July 2017 after nine months of brutal urban warfare, effectively broke ISIS as a territorial state in Iraq, though the organization continued to mount attacks.

Baghdad Today: a City Reconstructing Itself

The Baghdad of the 2020s is a city engaged in the complex, painful, and still-unfinished work of reconstruction after two decades of war, insurgency, and institutional failure. The ISIS threat has been militarily defeated, though not eliminated as an ideological force. The most acute phase of sectarian civil war is past. Oil revenues have returned and, at times, been substantial. The population of Baghdad — which declined significantly during the worst years of violence as families fled to safer areas of Iraq or emigrated — has returned and continued to grow, reaching an estimated seven to eight million people, making it the second-largest city in the Arab world after Cairo.

The physical reconstruction of Baghdad has been uneven and complicated by the political economy of Iraqi governance, which is heavily shaped by the system of muhasasa — ethnic-sectarian power-sharing — that was established after 2003. This system has created a political culture in which government positions are distributed among Shia, Sunni, and Kurdish communities according to demographic proportions, which has produced governments that are more broadly representative than the Ba'athist state but often less capable of delivering services or pursuing coherent policy. Corruption has been a persistent and massive problem: Iraq ranked among the most corrupt countries in the world on standard international indices through much of the post-2003 period, and the loss of public resources to corruption has significantly reduced the state's capacity to invest in infrastructure, services, and institutions.

Yet reconstruction is happening. The blast walls that turned Baghdad into a city of fortified enclaves during the worst years of sectarian violence have been partially removed. New commercial development has appeared in parts of the city. Restaurants, cafes, and cultural venues that had been shuttered during the worst years have reopened. Young Iraqis, a demographic bulge in a country with a high birth rate, are present everywhere in the city, representing both the challenge of providing opportunity and the energy of a society that refuses to be defined by its trauma.

The Tigris River runs through the center of Baghdad as it has for millennia. Unlike Isfahan's dying Zayandeh Rud, the Tigris in Baghdad retains its flow — though it too faces environmental pressures, including reduced flow from upstream dams in Turkey that have significantly diminished the river's volume in recent decades. The riverfront of Baghdad, once lined with the palaces and gardens of the Abbasid caliphs, has in the modern period been given over to government buildings, hotels, and the heavily fortified Green Zone — the International Zone — where the US Embassy and many Iraqi government institutions are located.

The Green Zone itself is one of the most dramatic symbols of what Baghdad has been through since 2003. This fortified enclave in the heart of the city, protected by blast walls, checkpoints, and surveillance, represents the gulf between the security requirements of governance in post-invasion Iraq and the aspiration of a normal urban life. The gradual reduction of the Green Zone's security measures in recent years has been celebrated by Iraqis as a sign of improving security, a return of the city to its residents.

The Iraq Museum: Memory and Loss

The Iraq Museum, located on the right bank of the Tigris in the Salihiya neighborhood, is one of the world's great archaeological museums, and its history since 2003 has been one of the most dramatic stories in the international effort to protect cultural heritage. Founded in 1926 under the British Mandate as a repository for the extraordinary finds emerging from the excavation of Mesopotamian sites, the museum grew over the following decades into an institution of global importance, housing collections that spanned the full span of Mesopotamian civilization from the prehistoric period through the Islamic era.

The looting of the museum in April 2003, described earlier in this article, was a catastrophe whose full dimensions only gradually became clear. The thieves included both opportunistic criminals taking advantage of the security vacuum and organized smuggling networks that had likely planned their actions in advance, knowing which objects to take and how to move them out of Iraq. The most valuable and portable items — cylinder seals, coins, small ivories, and jewelry — were particularly targeted. The Warka Vase, one of the most significant objects in the collection, was eventually returned to the museum, significantly damaged, by an individual who surrendered it anonymously. The Lion of Nimrud and the Nimrud ivories were recovered from a vault where they had been hidden by museum staff before the invasion. But thousands of objects remain unaccounted for, scattered through the international antiquities market or in private collections.

Since 2003, the Iraq Museum has been the subject of intensive international support and cooperation. UNESCO, various foreign governments, and international archaeological organizations have provided expertise, equipment, and resources to help rebuild the museum's operations, improve storage and security, and catalog what survived and what was lost. The museum reopened to the public in 2015, a symbolic moment of normalization that drew attention from around the world. Its collections, despite the terrible losses of 2003, remain extraordinary: the surviving Mesopotamian artifacts represent civilizations whose complexity and achievement continue to astonish visitors and challenge the conventional Western narrative of ancient history as centered on Greece and Rome.

The museum's exhibits take visitors through five thousand years of Mesopotamian civilization: the Ubaid and Uruk periods of the fourth millennium BCE, when writing and urban civilization first appeared; the Sumerian city-states of the third millennium; the Akkadian Empire of Sargon the Great; the Old Babylonian period and the law code of Hammurabi; the Assyrian Empire and its extraordinary palace reliefs; the Neo-Babylonian period and the hanging gardens; the Achaemenid, Hellenistic, Parthian, and Sassanid periods; and the Islamic Abbasid period whose greatest monument, Baghdad itself, the museum inhabits.

The Mosque of Al-Kadhimiya: a Shia Sacred Heart

If the Iraq Museum represents Baghdad's connection to its deepest historical past, the Mosque of al-Kadhimiya represents its living religious present. Located in the al-Kadhimiya district on the western bank of the Tigris, the mosque is one of the most important Shia Muslim shrines in the world. It houses the tombs of two Shia imams: Musa al-Kadhim, the seventh imam, who died in 799 CE during the reign of Harun al-Rashid, and Muhammad al-Jawad, the ninth imam, who died in 835 CE. For Twelver Shia Muslims — who constitute the majority of Iraq's population — the shrine is a place of pilgrimage of the highest significance.

The mosque complex in its current form dates primarily to the Safavid period, when the Safavid shahs of Iran, the champions of Shia Islam, undertook extensive construction and embellishment of Shia shrines in Iraq. The most distinctive visual feature of the mosque is its pair of golden domes and four golden minarets, which gleam above the surrounding neighborhood and are visible from considerable distances across the flat Tigris plain. The interior of the shrine — which non-Muslims are not permitted to enter — is said to be among the most splendidly decorated sacred spaces in the Islamic world, with mirror-work walls, tilework, and precious-metal ornamentation of extraordinary elaborateness.

The al-Kadhimiya mosque was a frequent target of terrorist attacks during the worst years of the sectarian violence, precisely because its importance to Shia Islam made it a target for Sunni extremists seeking to provoke sectarian retaliation. Pilgrims gathering at the mosque for the anniversary celebrations of the imams' deaths were attacked multiple times in the mid-2000s, with massive loss of life. The resilience of the pilgrimage — which has continued even in the most dangerous periods — is testimony to the depth of Shia devotion to the imams and to the determination of Baghdad's Shia community to maintain their religious life in the face of violence.

The Ancient Sites: Babylon and Mesopotamian Heritage

Baghdad is not the only historically significant site in the wider region of central Iraq. Within reasonable travel distance of the capital lie some of the most important archaeological sites in human history. Babylon, the great city of Hammurabi and Nebuchadnezzar II, where the captive Jews of the Babylonian exile lived and where Alexander the Great died in 323 BCE, lies approximately 85 kilometers south of Baghdad near the modern city of Hilla. Under the Ba'athist period, Saddam Hussein undertook controversial reconstruction of parts of ancient Babylon, superimposing modern brick construction on ancient ruins in ways that archaeologists found deeply problematic. The site was further damaged during the US occupation, when coalition forces established a military camp at the site and inadvertently caused damage to irreplaceable ancient structures. Despite these depredations, Babylon remains one of the most significant archaeological sites in the world, a UNESCO World Heritage Site inscribed in 2019.

The ancient Sumerian sites of southern Iraq — Ur, Uruk, Eridu, Nippur — lie further south, in an area that was the heartland of the world's earliest civilization. Ur, the presumed birthplace of Abraham in the Hebrew Bible, contains the great ziggurat of Ur-Nammu, built around 2100 BCE, one of the best-preserved ancient Mesopotamian monuments. These sites suffered varying degrees of damage and looting during the period of the Iraq War and its aftermath, with unauthorized digging for saleable artifacts devastating the stratigraphic record at numerous sites.

The restoration of security across Iraq has allowed some resumption of archaeological work, with international teams returning to Iraqi sites in the late 2010s and 2020s. The work of recovery and documentation continues, though the losses from two decades of instability and looting are irreplaceable.

Sectarian Geography and the Sociology of Modern Baghdad

The Baghdad of today is a city profoundly shaped by the sectarian violence of 2006-2007, which produced a demographic sorting that has not been reversed. Neighborhoods that were religiously mixed before 2003 are now predominantly Shia or predominantly Sunni. This homogenization was achieved through terror — through killing, through threats, through the destruction of property — and it left deep marks on the social geography of the city that persist long after the acute violence ended.

The east bank of the Tigris — the older residential side of Baghdad, including the districts of Sadr City, Kadhimiya, and most of the traditional Shia neighborhoods — is overwhelmingly Shia. The west bank includes areas like Karrada, Mansour, and Yarmouk, which are more mixed, and neighborhoods further west and north like Adhamiya and Azamiya, which remain predominantly Sunni. The Kurdish population of Baghdad, once substantial, was greatly reduced during the violence.

The political and social consequences of this sorting are still being worked out. Reconciliation efforts between communities — official and unofficial, formal and informal — have proceeded slowly. Young Iraqis who grew up during the worst years of violence have lived their formative years in a city defined by checkpoints, bomb blasts, and sectarian enmity. The generation now entering adulthood has known little else. How this generation processes its experience, and whether it can build a Baghdad and an Iraq less defined by sectarian identity, is one of the most important open questions in the Middle East.

Oil wealth has returned to Iraq in the form of revenues that are, in aggregate, very large — Iraq's oil production has grown significantly in recent years, making it one of the largest oil exporters in the world. But the distribution of this wealth, the effectiveness of the government institutions meant to invest it in public services and infrastructure, and the structural problem of an economy almost entirely dependent on oil revenues and therefore highly vulnerable to oil price fluctuations, all remain central challenges for Baghdad and for Iraq.

The city of seven to eight million people that Baghdad has become is, in some ways, a direct descendant of al-Mansur's original vision: a city at the crossroads, connecting the world's peoples and trade routes, sitting on the Tigris in the ancient heartland of human civilization. The Abbasid dream of a city that could be the center of a world civilization has not been realized again. Perhaps it never will be, since the conditions that made the Abbasid golden age possible — the specific political, economic, and intellectual circumstances of the eighth and ninth centuries — are not reproducible. But Baghdad endures. It endures as few cities have endured, through sackings and conquests and civil wars and invasions and bombings. The Tigris still flows past the place where al-Mansur laid the foundations of his circular city, and Baghdad — despite everything, because of everything — is still the city that was once, and in memory remains, the greatest city in the world.

Sources

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