William Wilberforce was the prominent figure in the abolition of slavery in the British Empire during the 19th century. A member of Parliament, he dedicated much of his political career to the cause of abolition. His tireless campaigning and advocacy were instrumental in the passage of the Slave Trade Act of 1807, which made the slave trade illegal in the British Empire. Wilberforce continued to fight against slavery until his death in 1833, just three days before the Slavery Abolition Act was passed. His efforts were crucial in shaping public opinion and legislative changes toward the abolitionist movement.