query: When was slavery abolished in England?
passage: Slave Trade Act 1807
Many of the supporters thought the Act would lead to the end of slavery.[2] Slavery on English soil was unsupported in English law and that position was confirmed in Somersett's Case in 1772, but it remained legal in most of the British Empire until the Slavery Abolition Act in 1833.
passage: United Kingdom of Great Britain and Ireland
Earl Grey, prime minister from 1830 to 1834, and his rejuvenated Whig Party enacted a series of major reforms: the poor law was updated, child labour restricted and, most important, the Reform Act 1832 refashioned the British electoral system. In 1832 Parliament abolished slavery in the Empire with the Slavery Abolition Act 1833. The government purchased all the slaves for £20,000,000 (the money went to rich plantation owners who mostly lived in England), and freed the slaves, most of whom were in the Caribbean sugar islands.