The British Empire abolished slavery in 1833. We did it 32 years later.
The bigger chronology:
1792 - Denmark bans import of slaves to its West Indies colonies, although the law only took effect from 1803.
1807 - Britain passes Abolition of the Slave Trade Act, outlawing British Atlantic slave trade.
- United States passes legislation banning the slave trade, effective from start of 1808.
1811 - Spain abolishes slavery, including in its colonies, though Cuba rejects ban and continues to deal in slaves.
1813 - Sweden bans slave trading
1814 - Netherlands bans slave trading
1817 - France bans slave trading, but ban not effective until 1826
1833 - Britain passes Abolition of Slavery Act, ordering gradual abolition of slavery in all British colonies. Plantation owners in the West Indies receive 20 million pounds in compensation
- Great Britain and Spain sign a treaty prohibiting the slave trade
1819 - Portugal abolishes slave trade north of the equator
1846 - Danish governor proclaims emancipation of slaves in Danish West Indies, abolishing slavery
1848 - France abolishes slavery
1851 - Brazil abolishes slave trading
1858 - Portugal abolishes slavery in its colonies, although all slaves are subject to a 20-year apprenticeship
1861 - Netherlands abolishes slavery in Dutch Caribbean colonies
1865 - US passes 13th Amendment abolishing slavery
1886 - Slavery is abolished in Cuba
1888 - Brazil abolishes slavery