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Expanded History

History of United Kingdom

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

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Overview

The Roman invasion of Britain in 55 BC and most of Britain’s subsequent incorporation into the Roman Empire stimulated development and brought more active contacts with the rest of Europe. As Rome’s strength declined, the country again was exposed to invasion--including the pivotal incursions of the Angles, Saxons, and Jutes in the fifth and sixth centuries AD--up to the Norman conquest in 1066. Norman rule effectively ensured Britain’s safety from further intrusions; certain institutions, which remain characteristic of Britain, could develop. Among these are a political, administrative, cultural, and economic center in London; a separate but established church; a system of common law; distinctive and distinguished university education; and representative government.

Union
Both Wales and Scotland were independent kingdoms that resisted English rule. The English conquest of Wales succeeded in 1282 under Edward I, and the Statute of Rhuddlan established English rule 2 years later. To appease the Welsh, Edward’s son (later Edward II), who had been born in Wales, was made Prince of Wales in 1301. The tradition of bestowing this title on the eldest son of the British Monarch continues today. An act of 1536 completed the political and administrative union of England and Wales.

While maintaining separate parliaments, England and Scotland were ruled under one crown beginning in 1603, when James VI of Scotland succeeded his cousin Elizabeth I as James I of England. In the ensuing 100 years, strong religious and political differences divided the kingdoms. Finally, in 1707, England and Scotland were unified as Great Britain, sharing a single Parliament at Westminster.

Ireland’s invasion by the Anglo-Normans in 1170 led to centuries of strife. Successive English kings sought to conquer Ireland. In the early 17th century, large-scale settlement of the north from Scotland and England began. After its defeat, Ireland was subjected, with varying degrees of success, to control and regulation by Britain.

The legislative union of Great Britain and Ireland was completed on January 1, 1801, under the name of the United Kingdom. However, armed struggle for independence continued sporadically into the 20th century. The Anglo-Irish Treaty of 1921 established the Irish Free State, which subsequently left the Commonwealth and became a republic after World War II. Six northern, predominantly Protestant, Irish counties have remained part of the United Kingdom.

British Expansion and Empire
Begun initially to support William the Conqueror’s (c. 1029-1087) holdings in France, Britain’s policy of active involvement in continental European affairs endured for several hundred years. By the end of the 14th century, foreign trade, originally based on wool exports to Europe, had emerged as a cornerstone of national policy.

The foundations of sea power were gradually laid to protect English trade and open up new routes. Defeat of the Spanish Armada in 1588 firmly established England as a major sea power. Thereafter, its interests outside Europe grew steadily. Attracted by the spice trade, English mercantile interests spread first to the Far East. In search of an alternate route to the Spice Islands, John Cabot reached the North American continent in 1498. Sir Walter Raleigh organized the first, short-lived colony in Virginia in 1584, and permanent English settlement began in 1607 at Jamestown, Virginia. During the next two centuries, Britain extended its influence abroad and consolidated its political development at home.

Great Britain’s industrial revolution greatly strengthened its ability to oppose Napoleonic France. By the end of the Napoleonic Wars in 1815, the United Kingdom was the foremost European power, and its navy ruled the seas. Peace in Europe allowed the British to focus their interests on more remote parts of the world, and, during this period, the British Empire reached its zenith. British colonial expansion reached its height largely during the reign of Queen Victoria (1837-1901). Queen Victoria’s reign witnessed the spread of British technology, commerce, language, and government throughout the British Empire, which, at its greatest extent, encompassed roughly one-fifth to one-quarter of the world’s area and population. British colonies contributed to the United Kingdom’s extraordinary economic growth and strengthened its voice in world affairs. Even as the United Kingdom extended its imperial reach overseas, it continued to develop and broaden its democratic institutions at home.

20th Century
By the time of Queen Victoria’s death in 1901, other nations, including the United States and Germany, had developed their own industries; the United Kingdom’s comparative economic advantage had lessened, and the ambitions of its rivals had grown. The losses and destruction of World War I, t

Historical Eras

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

  1. Roman & Early Medieval

    55 BCE – 1066

    Julius Caesar's expeditions of 55–54 BC and the Claudian conquest of 43 AD brought most of Britain into the Roman Empire, introducing roads, towns, and Latin culture. Rome's withdrawal in the early 5th century left Britain vulnerable to waves of Anglo-Saxon and Viking incursions. These migrations reshaped the island's language, culture, and political geography, producing a patchwork of competing kingdoms that would eventually coalesce into England and Scotland.

  2. Medieval England

    1066 – 1485

    William the Conqueror's victory at Hastings in 1066 transformed English governance, introducing Norman feudalism, the Tower of London, and closer ties to continental Europe. Key institutions emerged during this era: Magna Carta (1215) limited royal power, Parliament took shape, and common law developed. The period was also marked by the Hundred Years' War with France, the Black Death (1349–51), and the English conquest of Wales under Edward I.

  3. Tudor & Stuart Era

    1485 – 1707

    The Tudor dynasty under Henry VII, Henry VIII, and Elizabeth I brought the English Reformation, the defeat of the Spanish Armada (1588), and the foundations of English sea power and overseas trade. The Stuart period saw England, Scotland, and Ireland convulsed by civil war, the execution of Charles I (1649), and the Glorious Revolution of 1688, which enshrined constitutional monarchy. The Acts of Union 1707 united England and Scotland into the Kingdom of Great Britain under a single Parliament.

  4. Empire & Industry

    1707 – 1914

    Britain emerged from the Napoleonic Wars (ended 1815) as the world's foremost naval and commercial power, embarking on an era of unprecedented industrial and imperial expansion. The Industrial Revolution transformed society, making Britain the workshop of the world, while the British Empire at its Victorian zenith encompassed roughly one-quarter of the globe. Parliamentary reform, the abolition of slavery, and the expansion of suffrage marked significant domestic progress alongside this global dominance.

  5. World Wars & Decline

    1914 – 1945

    Britain suffered enormous human and financial losses in both World Wars, with nearly a million dead in the First World War and sustained aerial bombardment and global conflict in the Second. Winston Churchill's wartime leadership proved decisive in resisting Nazi Germany, but the wars left Britain economically exhausted and politically diminished. The Anglo-Irish Treaty of 1921 partitioned Ireland, and the foundations of Empire began visibly to crack as independence movements gained momentum across Asia and Africa.

  6. Post-War Modern UK

    1945 – present

    The postwar Labour government established the National Health Service (1948) and the modern welfare state, while the British Empire was systematically dismantled into the Commonwealth of Nations. Britain became a founding member of NATO and a permanent UN Security Council member, but relative economic decline prompted entry into the European Economic Community in 1973. Devolution in 1999 created the Scottish Parliament and Welsh Assembly, and the 2016 Brexit referendum set Britain on a course to leave the European Union, reshaping its global role once again.

Timeline Preview

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

  1. 604

    St Paul’s Cathedral in London founded.

    St Paul’s Cathedral in London founded.

  2. 1010

    London Bridge torn down by Vikings with grappling irons.

    London Bridge torn down by Vikings with grappling irons.

  3. 1045 – 1050

    Building of Westminster Abbey; consecrated 28 Dec 1065.

    Building of Westminster Abbey; consecrated 28 Dec 1065.

  4. 1081

    Building of Tower of London starts.

    Building of Tower of London starts.

  5. 1100

    First record of football in England.

    The first written evidence of a football match came in about 1170, when William Fitzstephen wrote of his visit to London.

  6. 1231

    Cambridge University organized and granted Royal Charter.

    Cambridge University organized and granted Royal Charter.

  7. 1296

    Annexation of Scotland by England.

    Annexation of Scotland by England.