Brazil introduced the Golden Law (Lei Áurea), signed by the Princess Imperial of Brazil, which abolished all forms of slavery.

The Lei Áurea (Portuguese pronunciation: [ˈlej ˈawɾiɐ]; from Portuguese: Golden Law), adopted on May 13, 1888, was the law that abolished slavery in Brazil. It was signed by Isabel, Princess Imperial of Brazil (1846 – 1921), an opponent of slavery, who acted as regent to Emperor Pedro II, who was in Europe.