Treaty between Britain and Sweden to abolish slave trade
1827
Chile abolishes slavery
1823
Greece abolishes slavery.
1822
Ecuador, Colombia, Venezuela abolish slavery
1821
Treaty between Britain and Spain to abolish slave trade
1818
France and Holland abolish slave trading
1818
Spain abolishes slavery at home and in all colonies except Cuba, Puerto Rico, and Santo Domingo
1811
British begin patrols of African coast to arrest slaving vessels. West Africa Squadron (Royal Navy) established to suppress slave trading; by 1865, nearly 150,000 people freed by anti-slavery operations[8]
1807
Lower Canada abolishes slavery
1803
Denmark abolish slave trade in Danish colonies
1802
Slavery illegal in Scotland
1778
Slavery declared illegal in England, including overseas slaves living in England. Lord Chief Justice Mansfield rules that English law does not support slavery.[3]