William Wilberforce was born on 24 August 1759 in Hull, the son of a wealthy merchant. He studied at Cambridge University where he began a lasting friendship with the future prime minister, William Pitt the Younger. In 1780, Wilberforce became member of parliament for Hull, later representing Yorkshire. His dissolute lifestyle changed completely when he became an evangelical Christian, and in 1784 he joined a leading group known as the Clapham Sect. His Christian faith prompted him to become interested in social reform, particularly the improvement of factory conditions in Britain.
The abolitionist Thomas Clarkson had an enormous influence on Wilberforce. He and others were campaigning for an end to the trade in which British ships were carrying black slaves from Africa, in terrible conditions, to the West Indies as goods to be bought and sold. Wilberforce was persuaded to lobby for the abolition of the slave trade and for 18 years he regularly introduced anti-slavery motions in parliament. The campaign was supported by many members of the Clapham Sect and other abolitionists who raised public awareness of their cause with pamphlets, books, rallies and petitions. In 1807, the slave trade was finally abolished, but this did not free those who were already slaves. It was not until 1833 that an act was passed giving freedom to all slaves in the British empire.
Wilberforce retired from politics in 1825 and died on 29 July 1833, shortly after the Act to free slaves in the British Empire passed through the House of Commons. He was buried near his friend Pitt in Westminster Abbey.
