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History of Argentina

From antiquity to the modern era — the historical eras, key events, and narrative that shaped Argentina.

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Overview

Europeans arrived in the region with the 1502 voyage of Amerigo Vespucci. Spanish navigator Juan Diaz de Solias visited what is now Argentina in 1516. Spain established a permanent colony on the site of Buenos Aires in 1580, although initial settlement was primarily overland from Peru. The Spanish further integrated Argentina into their empire by establishing the Vice Royalty of Rio de la Plata in 1776, and Buenos Aires became a flourishing port. Buenos Aires formally declared independence from Spain on July 9, 1816. Argentines revere Gen. Jose de San Martin, who campaigned in Argentina, Chile, and Peru as the hero of their national independence. Following the defeat of the Spanish, centralist and federationist groups waged a lengthy conflict between themselves to determine the future of the nation. National unity was established, and the constitution promulgated in 1853. Two forces combined to create the modern Argentine nation in the late 19th century: the introduction of modern agricultural techniques and integration of Argentina into the world economy. Foreign investment and immigration from Europe aided this economic revolution. Investment, primarily British, came in such fields as railroads and ports. As in the United States, the migrants who worked to develop Argentina’s resources--especially the western pampas--came from throughout Europe. From 1880 to 1930 Argentina became one of the world’s 10 wealthiest nations based on rapid expansion of agriculture and foreign investment in infrastructure. Conservative forces dominated Argentine politics until 1916, when their traditional rivals, the Radicals, won control of the government. The Radicals, with their emphasis on fair elections and democratic institutions, opened their doors to Argentina’s rapidly expanding middle class as well as to groups previously excluded from power. The Argentine military forced aged Radical President Hipolito Yrigoyen from power in 1930 and ushered in another decade of Conservative rule. Using fraud and force when necessary, the governments of the 1930s attempted to contain the currents of economic and political change that eventually led to the ascendance of Juan Domingo Peron (b. 1897). New social and political forces were seeking political power, including a modern military and labor movements that emerged from the growing urban working class. The military ousted Argentina’s constitutional government in 1943. Peron, then an army colonel, was one of the coup’s leaders, and he soon became the government’s dominant figure as Minister of Labor. Elections carried him to the presidency in 1946. He aggressively pursued policies aimed empowering the working class and greatly expanded the number of unionized workers. In 1947, Peron announced the first 5-year plan based on the growth of industries he nationalized. He helped establish the powerful General Confederation of Labor (CGT). Peron’s dynamic wife, Eva Duarte de Peron, known as Evita (1919-52), played a key role in developing support for her husband. Peron won reelection in 1952, but the military sent him into exile1955. In the 1950s and 1960s, military and civilian administrations traded power, trying, with limited success, to deal with diminished economic growth and continued social and labor demands. When military governments failed to revive the economy and suppress escalating terrorism in the late 1960s and early 1970s, the way was open for Peron’s return. On March 11, 1973, Argentina held general elections for the first time in 10 years. Peron was prevented from running, but voters elected his stand-in, Dr. Hector Campora, as President. Peron’s followers also commanded strong majorities in both houses of Congress. Campora resigned in July 1973, paving the way for new elections. Peron won a decisive victory and returned as President in October 1973 with his third wife, Maria Estela Isabel Martinez de Peron, as Vice President. During this period, extremists on the left and right carried out terrorist acts with a frequency that threatened public order. The government resorted to a number of emergency decrees, including the implementation of special executive authority to deal with violence. This allowed the government to imprison persons indefinitely without charge. Peron died on July 1, 1974. His wife succeeded him in office, but a military coup removed her from office on March 24, 1976, and the armed forces formally exercised power through a junta composed of the three service commanders until December 10, 1983. The armed forces applied harsh measures against terrorists and many suspected of being their sympathizers. They restored basic order, but the human costs of what became known as "El Proceso," or the "Dirty War" were high. Conservative counts list between 10,000 and 30,000 persons as "disappeared" during t

Historical Eras

The major periods of {country}’s history at a glance.

  1. Pre-Colonial & Exploration

    10000 BCE – 1580

    Indigenous peoples including the Mapuche, Guaraní, and Diaguita inhabited the region for millennia before European contact. Amerigo Vespucci reached the area in 1502, and Juan Díaz de Solís entered the Río de la Plata in 1516. Early Spanish attempts at settlement were resisted, delaying permanent European presence in the region.

  2. Spanish Colonial Era

    1580 – 1816

    Spain established a permanent settlement at Buenos Aires in 1580, and the city grew into a vital commercial hub following the creation of the Viceroyalty of the Río de la Plata in 1776. Colonial society was structured around Spanish-born elites, criollos, and a large mestizo and indigenous labor force. Enlightenment ideas and Napoleonic disruptions in Europe gradually fueled independence sentiment among the criollo class.

  3. Independence & Nation-Building

    1816 – 1880

    Argentina formally declared independence on July 9, 1816, with General José de San Martín leading military campaigns that expelled Spanish forces from the southern cone. Decades of violent conflict followed between centralist Unitarios and federalist Caudillos, including the dictatorship of Juan Manuel de Rosas. A federal constitution adopted in 1853 and the final unification of Buenos Aires with the Argentine confederation by 1880 established the modern republic.

  4. Oligarchic Republic & Growth

    1880 – 1930

    Argentina emerged as one of the world's ten wealthiest nations, driven by agricultural exports, British investment in railroads and ports, and massive waves of European immigration. Conservative landowning elites dominated politics until the Radical Civic Union under Hipólito Yrigoyen won the presidency in 1916, opening government to the growing middle class. A military coup in 1930 ended this democratic experiment and returned conservative factions to power.

  5. Peronism & Military Cycles

    1930 – 1983

    Decades of instability culminated in Juan Domingo Perón's rise to the presidency in 1946, backed by organized labor and his charismatic wife Eva Duarte de Perón. Perón's populist-nationalist model reshaped Argentine society but was interrupted by military exile in 1955; he returned briefly to power in 1973 before his death in 1974. A brutal military junta ruling from 1976 to 1983 waged a "Dirty War" responsible for the forced disappearance of an estimated 30,000 people.

  6. Democratic Consolidation

    1983 – present

    The return of democracy under President Raúl Alfonsín in 1983 marked a decisive break from military rule, and trials of junta leaders set a regional precedent for accountability. Argentina weathered severe economic crises, including the 2001 collapse that triggered sovereign default and widespread social unrest, yet democratic institutions endured successive transfers of power. Ongoing challenges include chronic inflation, poverty, and political polarization between Peronist and non-Peronist coalitions.

Timeline Preview

The first 7 key events. View the full chronology on the timeline page.

  1. 1516

    Juan Diaz de Solis became the first European to enter Argentina in search of gold

    Juan Diaz de Solis became the first European to enter Argentina in search of gold. Many of the indigenous population of Argentina were killed by the diseases brought over by the Europeans.

  2. 1580

    Buenos Aires was established.

    Buenos Aires was established.

  3. 1680

    The Portuguese established a trading post across the Rio de la Plata from Buenos Aires .

    The Portuguese established a trading post across the Rio de la Plata from Buenos Aires.

  4. 1776

    Spain encompassed all of its territories in south-east South America

    Spain encompassed all of its territories in south-east South America to create one large colony called the Viceroyalty of the Rio de la Plata.

  5. 1810

    Overthrow of the king of Spain by Napoleon

    Overthrow of the king of Spain by Napoleon.

  6. 1812

    Jose de San Martin led the Argentina fight against Spain for Independence.

    Jose de San Martin led the Argentina fight against Spain for Independence.

  7. 1816

    Argentina declares its independence from Spain

    Argentina declares its independence from Spain. José de San Martín defeats Spanish forces in Chile.