1865: December: US abolishes slavery with the Thirteenth Amendment to the United States Constitution; about 40,000 remaining slaves are affected.[81]
1866: Slavery abolished in Indian Territory (now Oklahoma).[82]
1869: February 27: Portugal: King Louis I signs a decree of the government, chaired by the Marquis Sá da Bandeira, abolishing slavery in all Portuguese territories. Accordingly, all slaves in the Portuguese colonies in Africa were set free, resulting in the total termination of slavery across the Portuguese Empire.
1871: Brazil: Rio Branco Law (Law of Free Birth) declares free the sons and daughters born to slave mothers after 28 September 1871.[83]
1873: Slavery abolished in the Spanish colony of Puerto Rico: March 22.
1873: Treaty between Britain and Zanzibar and Madagascar to suppress slave trade.[58]
1874: Britain abolishes slavery in the Gold Coast (now Ghana), following its annexation in 1874.[84]
1877: Egypt abolishes slavery in August.
1879: After spending 5 centuries as an Ottoman province the newly restored principality of Bulgaria abolished slavery with its new constitution declaring that any slave arriving on its territory is freed at once.
1882: Ottoman firman abolishes all forms of slavery, white or black.[85]
1884: France abolished slavery in its then Protectorate of Cambodia.
1885: Brazil passes Sexagenarians Law (Saraiva-Cotegipe Act), freeing all slaves over the age of 60, and creating other measures for the gradual abolition of slavery, such as a Manumissions Fund administered by the State.
1886: Slavery abolished in Cuba.[34]
1888: May 13: Brazil enacts the Golden Law, decreeing the total abolition of slavery with immediate effect, without indemnities to slave owners, but the financial aid to the freed men and women planned by the monarchy never took place due to a military coup that established a Republic in the country.[86]
1890: Brussels Conference Act – a collection of anti-slavery measures to put an end to the slave trade on land and sea, especially in the Congo Basin, the Ottoman Empire, and the East African coast.
1894: Korea officially abolishes slavery, but it survives in practice until 1930.[87]
1896: France abolishes slavery in its then colony of Madagascar.
1897: Zanzibar abolishes slavery[88] following its becoming a British protectorate.
1899: France abolishes slavery in Ndzuwani.
1900–present[edit]
1902: The Ethiopian Empire abolishes slavery (although it was legally and officially abolished by Emperor Haile Selassie in 1942).[citation needed]
1906: China formally abolishes slavery effective 31 January 1910, when all adult slaves were converted into hired labourers and the young were freed upon reaching age 25.[29]
1912: Siam (Thailand) formally abolishes all slavery. The act of selling a person into slavery was abolished in 1897, but slavery itself was not outlawed at that time.[89]
1922: Morocco abolishes slavery.[90]
1923: Afghanistan abolishes slavery.[91]
1924: Iraq abolishes slavery.[citation needed]
1924: League of Nations appoints a Temporary Slavery Commission.
1926: Nepal abolishes slavery.[citation needed]
1926: September 25: Convention to Suppress the Slave Trade and Slavery bound all signatories to end slavery.[citation needed]
1928: Iran abolishes slavery.[92]
1928: Domestic slavery practised by local African elites abolished in Sierra Leone.[93] Although established as a place for freed slaves, a study found practices of domestic slavery still widespread in rural areas in the 1970s.[citation needed]
1935: Italian General Emilio De Bono proclaims slavery to be abolished in the Ethiopian Empire.[94]
1936: Britain abolishes slavery in Northern Nigeria.[95]
1946: Fritz Sauckel, Nazi official responsible for procuring forced labor in occupied Europe during World War II, is convicted of crimes against humanity and hanged.[citation needed]
1948: UN Article 4 of the Universal Declaration of Human Rights declares slavery to be contrary to human rights.[96]
1952: Qatar abolishes slavery.[citation needed]
1958: Bhutan abolishes slavery.[citation needed]
1960: Niger abolishes slavery (although it was not made illegal until 2003).[97]
1962: Saudi Arabia abolishes slavery.[citation needed]
1962: Yemen abolishes slavery.[citation needed]
1964: The United Arab Emirates abolishes slavery.[citation needed]
1970: Oman abolishes slavery.[citation needed]
1981: Mauritania abolishes slavery.[98][99][100]
2003: Niger makes slavery a crime.[97]
2007: Mauritania makes slavery a crime.[101]
2009: UK, section 71 of the Coroners and Justice Act 2009.[102]
2015: UK, Modern Slavery Act 2015.[citation needed]