A Global Power

This section covers the birth of constitutional monarchy, the union of Scotland and later Ireland with England and Wales, the Enlightenment, the Industrial Revolution, the slave trade and its abolition, the loss of the American colonies, the wars with France, and the growth of the British Empire under Queen Victoria.

Constitutional Monarchy — the Bill of Rights

At William and Mary's coronation, a Declaration of Rights confirmed that the monarch could no longer raise taxes or administer justice without Parliament's agreement. The Bill of Rights 1689 confirmed Parliament's powers and limited the king's — Parliament now controlled succession and required the monarch to be Protestant, elections had to be held at least every three years, and the monarch needed Parliament's annual approval to fund the army and navy.

This gave rise to "constitutional monarchy": the monarch remained important, but ministers gradually became more powerful. Two parties emerged — the Whigs and the Tories (the modern Conservative Party is still sometimes called the Tories) — marking the start of party politics. From 1695, newspapers no longer needed a government licence, beginning the growth of a free press.

Union with Scotland and the First Prime Minister

With Queen Anne leaving no surviving heir, the 1707 Act of Union (Treaty of Union in Scotland) created the Kingdom of Great Britain, though Scotland kept its own legal system, education system and Presbyterian Church. When Anne died in 1714, Parliament chose the German George I as the nearest Protestant relative. Because George spoke poor English, he relied heavily on his ministers — Sir Robert Walpole became the first to be known as Prime Minister, serving 1721–1742.

In 1745, Charles Edward Stuart ("Bonnie Prince Charlie"), grandson of James II, led a Highland rebellion to restore the Stuarts, but was defeated at the Battle of Culloden in 1746. The clans lost much of their power afterward, and the "Highland Clearances" saw many small farms cleared for sheep and cattle, driving many Scots to emigrate to North America.

The Enlightenment and the Industrial Revolution

The 18th-century Enlightenment brought new ideas in politics, philosophy and science — many from Scottish thinkers like Adam Smith (economics) and David Hume (philosophy). A core Enlightenment principle — that people should have the right to their own political and religious beliefs — remains important in the UK today.

The Industrial Revolution saw Britain become the first country to industrialise at scale, driven by machinery and steam power. Coal-powered factories drew people from the countryside into mining and manufacturing towns; canals and later railways moved goods and people. Working conditions were often harsh, with no legal protections and children working alongside adults.

The Slave Trade

Slavery was illegal within Britain but, by the 18th century, was a fully established overseas industry involving Britain and the American colonies. Slaves, taken primarily from West Africa, endured horrific conditions working plantations in America and the Caribbean.

Quakers formed the first formal anti-slavery groups in the late 1700s, and William Wilberforce MP played a central role in turning public opinion against the trade. In 1807 it became illegal to trade slaves on British ships or from British ports; the Emancipation Act of 1833 abolished slavery throughout the British Empire, and the Royal Navy began intercepting foreign slave ships.

The American War of Independence

By the 1760s, wealthy, largely self-governing British colonies existed across North America. Colonists rejected British taxation without representation; fighting broke out, and in 1776 thirteen colonies declared independence. Britain formally recognised American independence in 1783.

War with France and the Union Flag

Britain fought France repeatedly through the 18th and early 19th centuries. The Royal Navy, under Admiral Nelson, won the Battle of Trafalgar in 1805 (Nelson was killed in the battle). The Duke of Wellington defeated Napoleon at Waterloo in 1815.

In 1801, Ireland was unified with England, Scotland and Wales under the Act of Union, creating the United Kingdom of Great Britain and Ireland. The Union Flag (Union Jack) combines the crosses of St George (England, red on white), St Andrew (Scotland, diagonal white on blue) and St Patrick (Ireland, diagonal red on white). Wales isn't represented, since it was already united with England when the first Union Flag was created in 1606.

The Victorian Age and the British Empire

Queen Victoria reigned from 1837 to 1901. During this period the British Empire grew to cover India, Australia and large parts of Africa — the largest empire in history, with an estimated population over 400 million. Millions of Britons emigrated overseas, while others, including Russian and Polish Jews fleeing persecution, arrived to settle in Britain.

Free trade policies (including the repeal of the Corn Laws in 1846) boosted industry, and working conditions gradually improved — by 1847, women's and children's working hours were legally capped at 10 hours a day. Railways expanded rapidly, and engineers like Isambard Kingdom Brunel built major infrastructure. Britain led the world in iron, coal and cotton production and became a global centre for banking and insurance; the 1851 Great Exhibition in Hyde Park's Crystal Palace showcased British industry to the world.

Britain fought Russia alongside Turkey and France in the Crimean War (1853–56) — the first war extensively covered by the press. Florence Nightingale transformed military hospital care during the war and later founded modern nursing training.

In Ireland, the Great Famine of the mid-19th century, following the failure of the potato crop, killed around a million people and drove another million and a half to emigrate. The Irish Nationalist movement grew through the century, with some seeking full independence and others "Home Rule" within the UK.

Voting rights expanded gradually — the Reform Acts of 1832 and 1867 widened the electorate, though most men and all women still couldn't vote. The suffragette movement, led by figures such as Emmeline Pankhurst, campaigned for women's suffrage; women over 30 gained the vote in 1918, extended to equal terms with men in 1928.

Check That You Understand

• The change in the balance of power between Parliament and the monarchy
• When and why Scotland joined England and Wales to become Great Britain
• The reasons for the rebellion led by Bonnie Prince Charlie
• The ideas of the Enlightenment
• The importance of the Industrial Revolution
• The slave trade and when it was abolished
• The growth of the British Empire
• How democracy developed during this period