He was born on the 24th of August 1759 in Kingston upon Hull, the son of a wealthy merchant.
He went to Cambridge University and became friends with future Prime Minister William Pitt.
In 1780 he started his political career and eventually became an MP for Yorkshire.
In 1806, he sends Parliament his first anti-slavery bill which showed how bad slavery was, to abolish the slave trade.
After William Pitt died in 1807, the slave trade was abolished and was made illegal, but this did not help the ones that were already enslaved.
In 1833 the Slavery Abolition Act was passed in parliament and all slaves in the British Empire were granted freedom. William Wilberforce died 3 days later because of the flu and was buried near William Pitt.