William Wilberforce (1759-1833) was an English politician and philanthropist, known for his commitment to religious and social values, including the movement to stop the slave trade. Born in Hull, Yorkshire, he became a Member of Parliament for Yorkshire in 1784. In 1785, he underwent an evangelical conversion, resolving to commit himself to the service of God. He worked tirelessly for the passage of the Slave Trade Act of 1807, and the campaign that led to the Slavery Abolition Act 1833. He was also involved in the creation of the Church Mission Society, and the Society for the Prevention of Cruelty to Animals.