Timeline of abolition of slavery and serfdom

The abolition of slavery occurred at different times in different countries. It frequently occurred sequentially in more than one stage – for example, as abolition of the trade in slaves in a specific country, and then as abolition of slavery throughout empires. Each step was usually the result of a separate law or action. This timeline shows abolition laws or actions listed chronologically. It also covers the abolition of serfdom.

Date of abolition of legal slavery by country

Proclamation of the Abolition of Slavery in the French Colonies, 27 April 1848, 1849, by François Auguste Biard, Palace of Versailles

Although slavery is still abolished de jure in all countries, some practices akin to it continue today in many places throughout the world.

Ancient times

Date	Jurisdiction	Description
Early sixth century BC	Polis of Athens	The Athenian lawgiver Solon abolishes debt slavery and frees all Athenian citizens who had formerly been enslaved.[1][2]
539 BC	Achaemenid Empire	In the Cyrus Cylinder, Cyrus the Great claims that he freed the people of Babylon from forced labor. This has been at times interpreted as Cyrus abolishing slavery in Babylon or the whole of Persia, but there is no consensus on the matter among historians.[3] In Judaism, Cyrus is referred as a messiah for ending the Babylonian Captivity.
326 BC	Roman Republic	Lex Poetelia Papiria abolishes debt bondage.
3rd century BC	Maurya Empire	Ashoka abolishes the slave trade and encourages people to treat slaves well.[4]
221–206 BC	Qin Dynasty	Measures to eliminate the landowning aristocracy include the abolition of slavery and the establishment of a free peasantry who owed taxes and labor to the state. They also discouraged serfdom.[5] The dynasty was overthrown in 206 BC and many of its laws were overturned.
9–12 AD	Xin Dynasty	Wang Mang, first and only emperor of the Xin Dynasty, usurped the Chinese throne and instituted a series of sweeping reforms, including the abolition of slavery and radical land reform from 9–12 A.D.[6][7]

Medieval times

N.B.: Many of the listed reforms were reversed over succeeding centuries.

Date	Jurisdiction	Description
~500	Ireland	Slavery (or at least slave trading) ends for a time in Ireland,[8] but resumes by the ninth century.[9]
590–604	Rome	Pope Gregory I bans Jews from owning Christian slaves.[10]
7th century	Francia	Queen Balthild, a former slave, and the Council of Chalon-sur-Saône (644–655) condemn the enslavement of Christians. Balthild purchases slaves, mostly Saxon, and manumits them.[11]
741–752	Rome	Pope Zachary bans the sale of Christian slaves to Muslims, purchases all slaves acquired in the city by Venetian traders, and sets them free.
840	Carolingian Empire Venice	Pactum Lotharii: Venice pledges to neither buy Christian slaves in the Empire, nor sell them to Muslims. Venetian slavers switch to trading Slavs from the East.
873	Christendom	Pope John VIII declares the enslavement of fellow Christians a sin and commands their release.[12]
~900	Byzantine Empire	Emperor Leo VI the Wise prohibits voluntary self-enslavement and commands that such contracts shall be null and void and punishable by flagellation for both parties to the contract.[13]
922	West Francia	The Council of Koblenz equates the enslavement and sale of a Christian with homicide.[14]
960	Venice	Slave trade banned in the city under the rule of Doge Pietro IV Candiano.
1080	Angevin Empire	William the Conqueror prohibits the sale of any person to "heathens" (non-Christians) as slaves.
1100	Normandy	Serfdom no longer present.[15]
1102	England	The Council of London bans the slave trade.[14]
1120	Jerusalem	The Council of Nablus decrees that a man who rapes his own slave should be castrated, and that a man who rapes a slave belonging to another should be castrated and exiled.
c. 1160	Norway	The Gulating bans the sale of house slaves out of the country.
1171	Ireland	All English slaves in the island freed by the Council of Armagh.[14]
1198	France	Trinitarian Order founded with the purpose of redeeming war captives.
1214	Korčula	The Statute of the Town abolishes slavery.[16]
1218	Aragon	Mercedarians founded in Barcelona with the purpose of ransoming poor Christians enslaved by Muslims.
~1220	Holy Roman Empire	The Sachsenspiegel, the most influential German code of law from the Middle Ages, condemns slavery as a violation of man's likeness to God.[17]
1245	Aragon	James I bans Jews from owning Christian slaves, but allows them to own Muslims and Pagans.[18]
1256	Bologna	Liber Paradisus promulgated. Slavery and serfdom abolished, all serfs in the commune are released.
1274	Norway	Landslov (Land's Law) mentions only former slaves, implying that slavery was abolished in Norway.
1315	France	Louis X publishes a decree abolishing slavery and proclaiming that "France signifies freedom", that any slave setting foot on French ground should be freed.[19] However some limited cases of slavery continued until the 17th century in some of France's Mediterranean harbours in Provence, as well as until the 18th century in some of France's overseas territories.[20] Most aspects of serfdom are also eliminated de facto between 1315 and 1318.[21]
1335	Sweden	Slavery abolished (including Sweden's territory in Finland). However, slaves are not banned entry into the country until 1813.[22] In the 18th and 19th Centuries, slavery will be practiced in the Swedish-ruled Caribbean island of Saint Barthélemy. Sweden never had serfdom in except in a few territories it later acquired which was ruled under a local legal code.
1347	Poland	The Statutes of Casimir the Great issued in Wiślica emancipate all non-free people.[23]
1368	Ming Dynasty	The Hongwu Emperor abolishes all forms of slavery,[6] but it continues across China. Later rulers, as a way of limiting slavery in the absence of a prohibition, pass a decree that limits the number of slaves per household and extracts a severe tax from slave owners.[24]
1416	Ragusa	Slavery and slave trade abolished.
1435	Canary Islands	Pope Eugene IV's Sicut Dudum bans enslavement of Christians in the Canary Islands on pain of excommunication.[25] However non-Christian Guanches can still be enslaved.[20]
1477	Castile	Isabella I bans slavery in newly conquered territories.[26]
1479	Castile	The Treaty of Alcaçovas bans Castilian ships from sailing to Africa south of the Canaries, making the importation of African slaves south of the Sahara de facto Portuguese monopoly.[27]
1480	Galicia	Remnant serfdom abolished by the Catholic Monarchs.[28]
1486	Aragon	Ferdinand II promulgates the Sentence of Guadalupe, abolishing Carolingian-remnant serfdom (remença) in Old Catalonia.
1490	Castile	After a long court case, the Catholic Monarchs order that all La Gomera natives enslaved in the aftermath of the 1488 rebellion must be freed and returned to the island at Conquistador Pedro de Vera's expense. De Vera is also relieved from his post as Governor of Gran Canaria in 1491.[29]
1493	Castile	Queen Isabella bans the enslavement of Native Americans unless they are hostile or cannibalistic.[26] Native Americans are ruled to be subjects of the Crown. Columbus is preempted from selling Indian captives in Seville and those already sold are tracked, purchased from their buyers and released.

1500–1700 (Early Modern)

Date	Jurisdiction	Description
1503	Castile	Native Americans allowed to travel to Spain only on their own free will.[30]
1512	Castile	The Laws of Burgos establish limits to the treatment of natives in the Encomienda system.
1518	Spain	Decree of Charles V establishing the importation of African slaves to the Americas, under monopoly of Laurent de Gouvenot, in an attempt to discourage enslavement of Native Americans.
1528		Charles V forbids the transportation of Native Americans to Europe, even on their own will, in an effort to curtail their enslavement. Encomiendas are banned from collecting tribute in gold with the reasoning that Natives were selling their children to get it.[31]
1530		Outright slavery of Native Americans under any circumstance is banned. However, forced labor under the Encomienda continues.
1536		The Welser family is dispossessed of the Asiento monopoly (granted in 1528) following complaints about their treatment of Native American workers in Venezuela.
1537	New World	Pope Paul III forbids slavery of the indigenous peoples of the Americas and any other population to be discovered, establishing their right to freedom and property (Sublimis Deus).[32]
1542	Spain	The New Laws ban slave raiding in the Americas and abolish the slavery of natives, but replace it with other systems of forced labor like the repartimiento. Slavery of Black Africans continues.[20] New limits are imposed to the Encomienda.
1549		Encomiendas banned from using forced labor.
1550-1551		Valladolid Debate on the innate rights of indigenous peoples of the Americas.
1552		Bartolomé de las Casas, who had once defended the importation of African slaves as a way to protect Native Americans, also condemns African slavery.
1569	England	An English court case involving Cartwright, who had brought a slave from Russia, is said—on the basis of a summary written more than a century later—to have ruled slavery illegal in England, but appears to have been more about the nature of legally acceptable punishment than slavery per se, and certainly did not soon become a recognized precedent for outlawing slavery as slaves continued to be bought and sold in Liverpool and London markets without legal hindrance into the 18th century. See the article "Slavery at common law".
1570	Portugal	King Sebastian of Portugal bans the enslavement of Native Americans under Portuguese rule, allowing only the enslavement of hostile ones. This law was highly influenced by the Society of Jesus, which had missionaries in direct contact with Brazilian tribes.
1574	England	Last remaining serfs emancipated by Elizabeth I.[21]
1574	Philippines	Slavery abolished by royal decree.[33]
1588	Lithuania	The Third Statute of Lithuania abolishes slavery.[34]
1590	Japan	Toyotomi Hideyoshi bans slavery except as punishment for criminals.[35]
1595	Portugal	Trade of Chinese slaves banned.[36]
1602	England	The Clifton Star Chamber Case set a precedent, that impressing / enslaving children to serve as actors was illegal.
1609	Spain	The Moriscos, many of whom are serfs, are expelled from Peninsular Spain unless they become slaves voluntarily (known as moros cortados, "cut Moors") However, a large proportion avoid expulsion or manage to return..[37]
1624	Portugal	Enslavement of Chinese banned.[38][39]
1649	Russia	The sale of Russian slaves to Muslims is banned.[40]
1652	Providence Plantations	Roger Williams and Samuel Gorton work to pass legislation abolishing slavery in Providence Plantations, the first law of its kind in North America.[41]
1679	Russia	Feodor III converts all Russian field slaves into serfs.[42][43]
1683	Spanish Chile	Slavery of Mapuche prisoners of war abolished.[44]
1687	Spanish Florida	Slaves fugitive from British colonies granted freedom in return for conversion to Catholicism and four years of military service.
1688	Pennsylvania	The Germantown Quaker Petition Against Slavery is the first public protest against African-American slavery in what would become the United States.

1701–1799 (Late Modern)

Date	Jurisdiction	Description
1703	Ottoman Empire	The forced conversion and induction of Christian children into the army known as Devshirme or "Blood Tax", is abolished.
1706	England	In Smith v. Browne & Cooper, Sir John Holt, Lord Chief Justice of England, rules that "as soon as a Negro comes into England, he becomes free. One may be a villein in England, but not a slave."[45][46]
1712	Spain	Moros cortados expelled.[47]
1715	North Carolina South Carolina	Native American slave trade in the American Southeast reduces with the outbreak of the Yamasee War.
1723	Russia	Peter the Great converts all house slaves into house serfs, effectively making slavery illegal in Russia.
1723–1730	Qing Dynasty	The Yongzheng emancipation seeks to free all slaves to strengthen the autocratic ruler through a kind of social leveling that creates an undifferentiated class of free subjects under the throne. Although these new regulations freed the vast majority of slaves, wealthy families continued to use slave labor into the twentieth century.[24]
1732	Georgia	Province established without black slavery in sharp contrast to neighboring Carolina. In 1738, James Oglethorpe warns against changing that policy, which would "occasion the misery of thousands in Africa."[48] Native American slavery is legal throughout, however, and black slavery is later introduced in 1749.
1738	Spanish Florida	Fort Mosé, the first legal settlement of free blacks in what is today the United States, is established. Word of the settlement sparks the Stono Rebellion in South Carolina the following year.
1761	Portugal	The Marquis of Pombal bans the importation of slaves to metropolitan Portugal[49]
1766	Spain	Muhammad III of Morocco purchases the freedom of all Muslim slaves in Seville, Cadiz, and Barcelona.[50]
1772	England	Somersett's case rules that no slave can be forcibly removed from England. This case was generally taken at the time to have decided that the condition of slavery did not exist under English law in England and Wales, and emancipated the remaining ten to fourteen thousand slaves or possible slaves in England and Wales, who were mostly domestic servants.[51]
1773	Portugal	A new decree by the Marquis of Pombal, signed by the king Dom José, emancipates fourth-generation slaves[49] and every child of a slave mother born (the child) after the decree was published.[52]
1774	East India Company	Government of Bengal passed regulations 9, and 10 of 1774, prohibiting the trade in slaves without written deed, and the sale of anyone not already enslaved.[53]
1775	Virginia	Dunmore's Proclamation, promised freedom for slaves of American revolutionaries in Virginia who left their owners and joined the royal forces, becoming Black Loyalists. The British were defeated, and four of the first five presidents of the United States would later be slave owning Virginians.
1775	Pennsylvania	Pennsylvania Abolition Society formed in Philadelphia, the first abolition society within the territory that is now the United States of America.
1775–1783	United States	Atlantic slave trade banned or suspended during the American Revolutionary War. This was part of the 13 colonies overall policy of refusing to import anything from Britain, as an attempt to cut all economic ties with Britain during the war.[54]
1777	Madeira	Slavery abolished.[55]
1777	Vermont	The Constitution of the Vermont Republic partially bans slavery,[55] freeing men over 21 and women older than 18 at the time of its passage.[56] The ban is not strongly enforced.[57][58]
1778	Scotland	Joseph Knight successfully argues that Scots law cannot support the status of slavery.[59]
1779	U.S. Colonies	Philipsburg Proclamation extends the scope of Dunmore's Proclamation, issued four years earlier. It proclaimed all slaves in the newly established United States belonging to American Patriots free, regardless of their willingness to fight for the Crown. It further promised protection, freedom and land to any slaves who left their master. The victory of American rebels over the British preserved the institution of slavery as a cornerstone of the newly formed United States.
1780	Pennsylvania	An Act for the Gradual Abolition of Slavery passed, freeing future children of slaves. Those born prior to the Act remain enslaved for life. The Act becomes a model for other Northern states. Last slaves freed 1847.[60]
1783	Russia	Slavery abolished in the recently annexed Crimean Khanate.[61]
	Massachusetts	Massachusetts Supreme Judicial Court rules slavery unconstitutional, a decision based on the 1780 Massachusetts constitution. All slaves are immediately freed.[62]
	Holy Roman Empire	Joseph II abolishes slavery in Bukovina.[63]
	New Hampshire	Gradual abolition of slavery begins.
1784	Connecticut	Gradual abolition of slavery, freeing future children of slaves, and later all slaves.[64]
1784	Rhode Island	Gradual abolition of slavery begins.
1786	New South Wales	A no slavery policy is adopted by governor-designate Arthur Phillip for the soon-to-be established colony.[65]
1787	United States	The United States in Congress Assembled passes the Northwest Ordinance of 1787, outlawing any new slavery in the Northwest Territories.
	Sierra Leone	Founded by Great Britain as a colony for emancipated slaves.[66]
	Great Britain	Society for the Abolition of the Slave Trade founded in Great Britain.[55]
1788	Great Britain	Sir William Dolben's Act regulating the conditions on British slave ships enacted.
	France	Abolitionist Society of the Friends of the Blacks founded in Paris.
	Denmark	Limits imposed to serfdom under the Stavnsbånd system.
1789	France	Last remaining seigneurial privileges over peasants abolished.[67]
1791	Poland-Lithuania	The Constitution of May 3, 1791 introduced elements of political equality between townspeople and nobility, and placed the peasants under the protection of the government; thus, it mitigated the worst abuses of serfdom.
1791	France	Emancipation of second-generation slaves in the colonies.[50]
1792	Denmark-Norway	Transatlantic slave trade declared illegal after 1803, though slavery continues in Danish colonies to 1848.[68]
1792	Saint Helena	The importation of slaves to the island of Saint Helena was banned in 1792, but the phased emancipation of over 800 resident slaves did not take place until 1827, which was still some six years before the British parliament passed legislation to ban slavery in the colonies.[69]
1793	Saint-Domingue	Commissioner Leger-Felicite Sonthonax abolishes slavery in the northern part of the colony. His colleague Etienne Polverel does the same in the rest of the territory in October.
1793	Upper Canada	Importation of slaves banned by the Act Against Slavery.
1794	France	Slavery abolished in all French territories and possessions.[70]
	United States	The Slave Trade Act bans both American ships from participating in the slave trade and the export of slaves in foreign ships.[54]
	Poland-Lithuania	The Proclamation of Połaniec, issued during the Kościuszko Uprising, partially abolished serfdom in Poland, and granted substantial civil liberties to all peasants.
1798	Occupied Malta	Slavery banned in the islands after their capture by Napoleon.[71]
1799	New York	Gradual emancipation act freeing the future children of slaves, and all slaves in 1827.[72]
1799	Scotland	The Colliers (Scotland) Act 1799 ends the legal servitude or slavery of coal and salt miners that had been established in 1606.[73]

1800–1829

Illustration from the book: The Black Man's Lament, Or, How to Make Sugar by Amelia Opie. (London, 1826)

Date	Jurisdiction	Description
1800	United States	American citizens banned from investment and employment in the international slave trade in an additional Slave Trade Act.
1802	France	Napoleon re-introduces slavery in sugarcane-growing colonies.[74]
1802	Ohio	State constitution abolishes slavery.
1803	Denmark-Norway	Abolition of transatlantic slave trade takes effect on January 1.
1804	New Jersey	Slavery abolished.[75]
1804	Haiti	Haiti declares independence and abolishes slavery.[55]
1804–1813	Serbia	Local slaves emancipated.
1805	United Kingdom	A bill for abolition passes in House of Commons but is rejected in the House of Lords.
1806	United States	In a message to Congress, Thomas Jefferson calls for criminalizing the international slave trade, asking Congress to "withdraw the citizens of the United States from all further participation in those violations of human rights … which the morality, the reputation, and the best of our country have long been eager to proscribe."
1807	United States	International slave trade made a felony in Act Prohibiting Importation of Slaves; this act takes effect on 1 January 1808, the earliest date permitted under the Constitution.[76]The domestic trade in slaves in the United States continued until 1865.
	United Kingdom	Abolition of the Slave Trade Act abolishes slave trading in British Empire. Captains fined £120 per slave transported. Patrols sent to the African coast to arrest slaving vessels. The West Africa Squadron (Royal Navy) is established to suppress slave trading; by 1865, nearly 150,000 people freed by anti-slavery operations.[77]
	Warsaw	Constitution abolishes serfdom.[78]
	Prussia	The Stein-Hardenberg Reforms abolish serfdom.[78]
	Michigan Territory	Judge Augustus Woodward denies the return of two slaves owned by a man in Windsor, Upper Canada. Woodward declares that any man "coming into this Territory is by law of the land a freeman."[79]
1808	United States	Importation and exportation of slaves made a crime.[80]
1810	New Spain	Independence leader Miguel Hidalgo y Costilla demands the abolition of slavery.
1811	United Kingdom	Slave trading made a felony punishable by transportation for both British subjects and foreigners.
	Spain	The Cádiz Cortes abolish the last remaining seigneurial rights.[50]
	British East India Company	The Company issued regulations 10 of 1811, prohibiting the transport of slaves into Company territory, adding to the 1774 restrictions.[53]
	Chile	The First National Congress approves a proposal of Manuel de Salas that declares Freedom of Wombs, freeing the children of slaves born in Chilean territory, regardless of their parents' condition. The slave trade is banned and the slaves who stay for more than six months in Chilean territory are automatically declared freedmen.
1812	Spain	The Cádiz Constitution gives citizenship and equal rights to all residents in Spain and her territories, excluding slaves. Deputies José Miguel Guridi y Alcocer and Agustín Argüelles argue for the abolition of slavery unsuccessfully.[50]
1813	New Spain	Independence leader José María Morelos y Pavón declares slavery abolished in the documents Sentimientos de la Nación.
1813	La Plata	Law of Wombs passed by the Assembly of Year XIII. Slaves born after 31 January 1813 will be granted freedom when they are married, or on their 16th birthday for women and 20th for men, and upon their manumission will be given land and tools to work it.[81]
1814	La Plata	After the occupation of Montevideo, all slaves born in modern Uruguayan territory are declared free.
1814	Netherlands	Slave trade abolished.
1815	France	Napoleon abolishes the slave trade.
	Portugal	Slave trade banned north of the Equator in return for a £750,000 payment by Britain.[82]
	Florida	British withdrawing after the War of 1812 leave a fully armed fort in the hands of maroons, escaped slaves and their descendants, and their Seminole allies. Becomes known as Negro Fort.
	United Kingdom Portugal Sweden-Norway France Austria Russia Spain Prussia	The Congress of Vienna declares its opposition to slavery.[83]
1816	Estonia	Serfdom abolished.
	Florida	Negro Fort destroyed in the Battle of Negro Fort by U.S. forces under the command of General Andrew Jackson.
	Algeria	Algiers bombarded by the British and Dutch navies in an attempt to end North African piracy and slave raiding in the Mediterranean. 3,000 slaves freed.
1817	Courland	Serfdom abolished.
	Spain	Ferdinand VII signs a cedula banning the importation of slaves in Spanish possessions beginning in 1820,[50] in return for a £400,000 payment from Britain.[82] However, some slaves are still smuggled in after this date. Both slave ownership and internal commerce in slaves remained legal.
	Venezuela	Simon Bolivar calls for the abolition of slavery.[50]
	New York	4 July 1827 set as date to free all ex-slaves from indenture.[84]
	La Plata	Constitution supports the abolition of slavery, but does not ban it.[50]
1818	United Kingdom Spain	Bilateral treaty abolishing the slave trade.[85]
	United Kingdom Portugal	Bilateral treaty abolishing the slave trade.[85]
	France	Slave trade banned.
	United Kingdom Netherlands	Bilateral treaty taking additional measures to enforce the 1814 ban on slave trading.[85]
1819	Livonia	Serfdom abolished.
	Upper Canada	Attorney-General John Robinson declares all black residents free.
	Hawaii	The ancient Hawaiian kapu system is abolished during the ʻAi Noa, and with it the distinction between the kauwā slave class and the makaʻāinana (commoners).[86]
1820	United States	The Compromise of 1820 bans slavery north of the 36º 30' line; the Act to Protect the Commerce of the United States and Punish the Crime of Piracy is amended to consider the maritime slave trade as piracy, making it punishable with death.
	Indiana	The supreme court orders almost all slaves in the state to be freed in Polly v. Lasselle.
	Spain	The 1817 abolition of the slave trade takes effect.[87]
1821	Mexico	The Plan of Iguala frees the slaves born in Mexico.[50]
	United States Spain	In accordance with Adams–Onís Treaty of 1819, Florida becomes a territory of the United States. A main reason was Spain's inability or unwillingness to capture and return escaped slaves.
	Peru	Abolition of slave trade and implementation of a plan to gradually end slavery.[50]
	Gran Colombia	Emancipation for sons and daughters born to slave mothers, program for compensated emancipation set.[88]
1822	Haiti	Jean Pierre Boyer annexes Spanish Haiti and abolishes slavery there.
1822	Liberia	Founded by the American Colonization Society as a colony for emancipated slaves.
1823	Chile	Slavery abolished.[55]
1823	United Kingdom	The Anti-Slavery Society is founded.
1823	Greece	Prohibition of slavery is enshrined in the Greek Constitution of 1823, during the Greek War of Independence.[89]
1824	Mexico	The new constitution effectively abolishes slavery.
1824	Central America	Slavery abolished.
1825	Uruguay	Importation of slaves banned.
1825	Haiti	France, with warships at the ready, demanded Haiti compensate France for its loss of slaves and its slave colony
1827	United Kingdom Sweden-Norway	Bilateral treaty abolishing the slave trade.[85]
	New York	Last vestiges of slavery abolished. Children born between 1799 and 1827 are indentured until age 25 (females) or age 28 (males).[90]
	Saint Helena	Phased emancipation of over 800 resident slaves, some six years before the British parliament passed legislation to ban slavery in all colonies.[91]
1829	Mexico	Last slaves freed just as the first president of partial African ancestry (Vicente Guerrero) is elected.[55]

1830–1849

An anti-slavery map with an unusual perspective centered on West Africa, which is in the light, and contrasting the U. S. and Europe in the dark. By Julius Rubens Ames, 1847

Date	Jurisdiction	Description
1830	Coahuila y Tejas	Mexican President Anastasio Bustamante attempts to implement the abolition of slavery. To circumvent the law, Anglo-Texans declare their slaves "indentured servants for life."[92]
1830	Uruguay	Slavery abolished.
1830	Ottoman Empire	Mahmud II issues a firman freeing all white slaves.
1831	Bolivia	Slavery abolished.[55]
1831	Brazil	Law of 7 November 1831, abolishing the maritime slave trade, banning any importation of slaves, and granting freedom to slaves illegally imported into Brazil. The law was seldom enforced prior to 1850, when Brazil, under British pressure, adopted additional legislation to criminalize the importation of slaves.
1832	Greece	Slavery abolished with independence.
1832	Coahuila y Tejas	Anahuac Disturbances: Juan Davis Bradburn, American-born Mexican officer at Anahuac,Texas, confronts slave-owning American settlers, enforcing Mexican abolition of slavery and refusing to hand over two escaped slaves.
1834	United Kingdom	The Slavery Abolition Act 1833 comes into force, abolishing slavery throughout most of the British Empire but on a gradual basis over the next six years.[93] Legally frees 700,000 in the West Indies, 20,000 in Mauritius, and 40,000 in South Africa. The exceptions are the territories controlled by the East India Company and Ceylon.[94]
1834	France	French Society for the Abolition of Slavery founded in Paris.[95]
1835	Serbia	Freedom granted to all slaves in the moment they step on Serb soil.[96]
	United Kingdom France	Bilateral treaties abolishing the slave trade.[85]
	United Kingdom Denmark	Bilateral treaties abolishing the slave trade.[85]
	Peru	A decree of Felipe Santiago Salaverry re-legalizes the importation of slaves from other Latin American countries. The line "no slave shall enter Peru without becoming free" is taken out of the Constitution in 1839.[97]
1836	Portugal	Prime Minister Sá da Bandeira bans the transatlantic slave trade and the importation and exportation of slaves from, or to the Portuguese colonies south of the equator.
1836	Texas	Slavery made legal again with independence.
1837	Spain	Slavery abolished outside of the colonies.[50]
1838	United Kingdom	All slaves in the colonies become free after a period of forced apprenticeship following the Slavery Abolition Act 1833.
1839	United Kingdom	The British and Foreign Anti-Slavery Society (today known as Anti-Slavery International) replaces the Anti-Slavery Society.
	East India Company	The Indian indenture system is abolished in territories controlled by the Company, but this is reversed in 1842.
	Catholic Church	Pope Gregory XVI's In supremo apostolatus resoundingly condemns slavery and the slave trade.
1840	United Kingdom Venezuela	Bilateral treaty abolishing the slave trade.
1840	United Kingdom	First World Anti-Slavery Convention meets in London.
1841	United Kingdom France Russia Prussia Austria	Quintuple Treaty agreeing to suppress the slave trade.[55]
1841	United States	United States v. The Amistad finds that the slaves of La Amistad were illegally enslaved and were legally allowed, as free men, to fight their captors by any means necessary.
1842	United Kingdom Portugal	Bilateral treaty extending the enforcement of the slave trade ban to Portuguese ships south of the Equator.
1842	Paraguay	Law for the gradual abolition of slavery passed.[50]
1843	East India Company	The Indian Slavery Act, 1843, Act V abolishes slavery in territories controlled by the Company.
	United Kingdom Uruguay	Bilateral treaties abolishing the slave trade.[85]
	United Kingdom Mexico
	United Kingdom Chile
	United Kingdom Bolivia
1844	Moldavia	Mihail Sturdza abolishes slavery in Moldavia.
1845	United Kingdom	36 Royal Navy ships assigned to the Anti-Slavery Squadron, making it one of the largest fleets in the world.
1845	Illinois	In Jarrot v. Jarrot, the Illinois Supreme Court frees the last indentured ex-slaves in the state who were born after the Northwest Ordinance.[98]
1846	Tunisia	Slavery abolished under Ahmad I ibn Mustafa bey rule [99].
1847	Ottoman Empire	Slave trade from Africa abolished.[100]
	Saint Barthélemy	Last slaves freed.[101]
	Pennsylvania	The last indentured ex-slaves, born before 1780 (fewer than 100 in the 1840 census[102]) are freed.
	Danish West Indies	Royal edict ruling the freedom of children born from female slaves and the total abolition of slavery after 12 years. Dissatisfaction causes a slave rebellion in Saint Croix the next year.
1848	Austria	Serfdom abolished.[103][104][105]
	France	Slavery abolished in the colonies. Gabon is founded as a settlement for emancipated slaves.
	Danish West Indies	Governor Peter von Scholten declares the immediate and total emancipation of all slaves in an attempt to end the slave revolt. For this he is recalled and tried for treason, but the charges are later dropped.[55][101][106]
	Denmark	Last remains of the Stavnsbånd effectively abolished.
	United Kingdom Muscat and Oman	Bilateral treaties abolishing the slave trade.[85]
1849	United Kingdom Trucial States	Bilateral treaties abolishing the slave trade.[85]
	Maryland	Harriet Tubman escapes from slavery in Dorchester County.
	Sierra Leone	The Royal Navy destroys the slave factory of Lomboko.

1850–1899

Medical examination photo of Gordon showing his scourged back, widely distributed by Abolitionists to expose the brutality of slavery.

Date	Jurisdiction	Description
1850	United States	The Fugitive Slave Law of 1850 requires the return of escaped slaves to their owners regardless of the state they are in.
1850	Brazil	Eusébio de Queiróz Act (Law 581 of 4 September 1850) criminalizing the maritime slave trade as piracy, and imposing other criminal sanctions on the importation of slaves (already banned in 1831).
1851	Brazil Uruguay	Bilateral treaty of October 12, Uruguay accepts returning to Brazil the escaped slaves from that country. Brazilians who owned land in Uruguay were allowed to have slaves in their properties.
	Taiping Heavenly Kingdom	Slavery abolished along with opium, gambling, tobacco, alcohol, polygamy, prostitution, and foot binding.[107][108][109]
	New Granada	Slavery abolished.[88] After years of laws that only purported a partial advancement towards abolition, President José Hilario López pushed Congress to pass total abolition on May 21. Former owners were compensated with government issued bonds.[110]
	Ecuador	Slavery abolished.[111]
	Lagos	Reduction of Lagos: The British attack the city and replace King Kosoko with Akitoye because of the former's refusal to ban the slave trade.
1852	Hawaii	1852 Constitution officially declared slavery illegal.[112]
1852	United Kingdom Lagos	Bilateral treaty banning the slave trade and human sacrifice.
1853	Argentina	Slavery abolished.[113]
1854	Peru	Slavery abolished.[55]
	Venezuela	Slavery abolished.[55][88]
	Ottoman Empire	Trade of Circassian children banned.
1855	Moldavia	Slavery abolished.
1856	Wallachia	Slavery abolished.
1857	United States	Dred Scott v. Sanford rules that black slaves and their descendants cannot gain American citizenship and that slaves are not entitled to freedom even if they live in a free state for years.
1857	Egypt	Firman banning the trade of Black African (Zanj) slaves.
1858	Ottoman Empire	Zanj slave trade banned in the Middle East, Balkans and Cyprus.
1859	Atlantic Ocean	Definitive suppression of the transatlantic slave trade.
	United States	The Wyandotte Constitution establishes the future state of Kansas as a free state, after four years of armed conflict between pro-slavery and anti-slavery groups in the territory. Southern dominance in the Senate of the United States delays the admission of Kansas as a state until 1861.
	Russia	Kazakhs banned from having slaves, although slavery persists in some areas through the rest of the century.[114]
1860	British Raj	Indian indenture system abolished.
1860	United States	Last slave ship to unload illegally on U.S. territory, the Clotilda.
1861	Russia	The Emancipation reform of 1861 abolishes serfdom.[115]
1861	United States	The election of Abraham Lincoln leads to the attempted secession of several slaveholding states and the American Civil War.
1862	United States United Kingdom	Bilateral treaty abolishing the slave trade (African Slave Trade Treaty Act).[85]
	Cuba	Slave trade abolished.[55]
	United States	Nathaniel Gordon becomes the only person hanged in U.S. history "for being engaged in the slave trade".
1863	Netherlands	Slavery abolished in the colonies, emancipating 33,000 slaves in Surinam, 12,000 in the Dutch Antilles,[116] and an indeterminate number in Indonesia.
	United States	Lincoln issues the Emancipation Proclamation, freeing all slaves in Confederate-controlled areas. Most slaves in "border states" are freed by state action, and a separate law frees the slaves in Washington, D.C.
	Iceland	Exemptions introduced to serfdom under the Vistarband system.
1864	Congress Poland	Serfdom abolished.[117]
1865	United States	Slavery abolished by the Thirteenth Amendment to the United States Constitution, excluding convicted criminals. It affects 40,000 remaining slaves.[118] Thirty out of thirty-six states vote to ratify it; New Jersey, Delaware, Kentucky, and Mississippi vote against.
	Texas	Juneteenth: U.S. General Gordon Granger proclaims the end of slavery in Galveston.
	Spain	Spanish Abolitionist Society founded in Madrid by Julio Vizcarrondo, José Julián Acosta and Joaquín Sanromá.[50]
1866	Indian Territory	Slavery abolished.[119] US government treaties with the "Five Civilized Tribes" in the Indian Territory (the Cherokee Nation, Choctaw Nation, Chickasaw Nation, Muscogee Nation, and Seminole Nation), which allied with the Confederacy, required all five tribes to abolish slavery for renewed US recognition of their governments.
	Iowa	Thirteenth Amendment ratified.
	New Jersey	Thirteenth Amendment ratified.
1867	Spain	Law of Repression and Punishment of the Slave Trade.[50]
1867	United States	Peonage Act of 1867, mostly targeting use of Native American peons in New Mexico Territory. Slavery among native tribes in Alaska was abolished after the purchase from Russia in 1867.[120]
1868	Cuba	Carlos Manuel de Céspedes and other independence leaders free their slaves and proclaim the independence of Cuba, starting the Ten Years War.
1869	Portugal	Louis I abolishes slavery in all Portuguese territories and colonies.
1870	Spain	Amidst great opposition from the Cuban and Puerto Rican planters, Segismundo Moret drafts a "Law of Free Wombs" that frees children of slaves, slaves older than 65 years, and slaves serving in the Spanish Army, beginning in 1872.[50]
1870	Texas	Thirteenth Amendment ratified.
1871	Brazil	Rio Branco Law (Law of Free Birth) makes the children born to slave mothers free.[121]
	Ottoman Empire	Slave trade criminalized.
	Japan	Abolition of the han system or Japanese feudalism.
1873	Puerto Rico	Slavery abolished.
1873	United Kingdom Zanzibar Madagascar	Triple treaty abolishing the slave trade.[85]
1874	Gold Coast	Slavery abolished.[122]
1879	Bulgaria	Slavery abolished with independence. The Constitution states that any slave that enters Bulgarian territory is immediately freed.
1882	Ottoman Empire	A firman emancipates all slaves, white and black.[123]
1884	Cambodia	Slavery abolished.
1885	Brazil	Sexagenarians Law (a.k.a. Saraiva-Cotegipe Act) passed, 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	Cuba	Slavery abolished.[55]
1888	Brazil	Golden Law decreeing the total abolition of slavery with immediate effect, without indemnities to slave owners. The financial aid to the freedmen planned by the monarchy never takes place due to the 15 November 1889 military coup that establishes a Republic in the country.[124]
1889	Italy	An Italian court finds that Josephine Bakhita was never legally enslaved according to Italian, British, or Egyptian law and is a free woman.
1890	United Kingdom France Germany Portugal Congo Italy Spain Netherlands Belgium Russia Austria-Hungary Sweden-Norway Denmark United States Ottoman Empire Zanzibar Persia	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	Slavery abolished, but it survives in practice until 1930.[125]
1894	Iceland	Vistarband effectively abolished (but not de jure).
1895	Taiwan	Taiwan is annexed by Japan, where slavery has been abolished
1895	Egypt	Slavery abolished.[126]
1895	Italian Somaliland	First slaves freed[127]
1896	Madagascar	Slavery abolished.
1897	Zanzibar	Slavery abolished.[128]
	Siam	Slave trade abolished.[129]
	Bassora	Children of freedmen issued separate certificates of liberation to avoid enslavement and separation from their parents.
1899	Ndzuwani	Slavery abolished.

1900–1949

Date	Jurisdiction	Description
1900	Guam	Slavery abolished February 22, 1900, by proclamation of Richard P. Leary.[130]
1901	Delaware	Thirteenth Amendment ratified.
1902	Cameroon	Gradual abolition of slavery[131]
1903	French Sudan	"Slave" no longer used as an administrative category.
1904	United Kingdom Germany Denmark Spain France Italy Netherlands Portugal Russia	International Agreement for the suppression of the White Slave Traffic signed in Paris. Only France, the Netherlands and Russia extend the treaty to the whole extent of their colonial empires with immediate effect, and Italy extends it to Eritrea but not to Italian Somaliland.[132]
1904	British East Africa	Slavery abolished[133]
1905	French West Africa	Slavery formally abolished. Though up to one million slaves gain their freedom, slavery continues to exist in practice for decades afterward.
1906	China	Slavery abolished beginning in 31 January 1910. Adult slaves are converted into hired laborers and the minors freed upon reaching age 25.[134]
1906	Barotseland	Slavery abolished[135]
1908	Ottoman Empire	The Young Turk Revolution eradicates the open trade of Zanj and Circassian women from Constantinople.[136]
1908	Congo Free State	Belgium annexes the Congo Free State, ending the practice of slavery there.
1912	Siam	Slavery abolished.[129][137][133][138][139]
1915	British Malaya
1919	Tanganyika
1922	Morocco
1923	Afghanistan
	Florida	Convict lease abolished after the death of Martin Tabert, who was whipped for being too ill to work.
	Hong Kong	Slavery of Mui tsai abolished.
1924	Iraq	Slavery abolished.
	Anglo-Egyptian Sudan	Slavery abolished[140]
	League of Nations	Temporary Slavery Commission appointed.
	Turkey	Slavery abolished[141][142]
1926	Nepal	Slavery abolished[141][142]
	League of Nations	Convention to Suppress the Slave Trade and Slavery.
	British Burma	Slavery abolished.[137]
1927	Spain	1926 Slavery Convention ratified.
1927	United Kingdom Nejd Hejaz	Treaty of Jeddah (1927) abolishing the slave trade.
1928	Sierra Leone	Abolition of domestic slavery practised by local African elites.[143] Although established as a place for freed slaves, a study found practices of domestic slavery still widespread in rural areas in the 1970s.
1928	Alabama	Convict lease abolished, the last state in the Union to do so.
1929	Persia	Slavery abolished and criminalized.[144]
1930	League of Nations	Forced Labour Convention.
1935	Ethiopia	The invading Italian General Emilio De Bono claims to have abolished slavery in the Ethiopian Empire.[145]
1936	Northern Nigeria	Slavery abolished.[146][147][148]
1936	Bechuanaland
1937	Bahrain
1940	United States	Matilda McCrear, last survivor of the Clotilda slave ship and last surviving African slave imported to the United States, dies in Selma, Alabama.
1941	United States	Franklin D. Roosevelt signs Circular 3591 abolishing all forms of convict leasing.
1946	Occupied Germany	Fritz Sauckel, Nazi official responsible for procuring forced labor in occupied Europe during World War II, is convicted of crimes against humanity and hanged.[149]
1946	French Sudan	Beginning of large slave defections encouraged by the French Fourth Republic and the Sudanese Union – African Democratic Rally party.
1948	United Nations	Article 4 of the Universal Declaration of Human Rights declares slavery contrary to human rights.[150]
1949	Kuwait	Slavery abolished [148]

1950–present

Date	Jurisdiction	Description
1952	Qatar	Slavery abolished.[151]
1953	Australia Canada Liberia New Zealand South Africa Switzerland United Kingdom	1926 Slavery Convention ratified.
1954	Afghanistan Austria Cuba Denmark Egypt Finland India Italy Mexico Monaco Sweden Syria
1955	Ecuador Greece Iraq Israel Netherlands Pakistan Philippines Taiwan Turkey
1956	United Nations	Supplementary Convention on the Abolition of Slavery.
1956	Byelorussia[152] Soviet Union United States South Vietnam	1926 Slavery Convention ratified.
1957	United Nations	The Abolition of Forced Labour Convention eliminates some exceptions admitted in the 1930 Forced Labour Convention.
1957	Albania Libya Myanmar Norway Romania Sudan	1926 Slavery Convention ratified.
1958	Bhutan	Slavery abolished.
1958	Hungary Ceylon	1926 Slavery Convention ratified.
1959	Jordan Morocco Ukraine[153]	1926 Slavery Convention ratified.
1960	Niger	Slavery abolished.[154]
1960	Mali	First president Modibo Keita makes the effective abolition of slavery a prominent goal of the government. However, his efforts are largely abandoned during the dictatorship of Moussa Traoré (1968–1991).
1961	Ireland Nigeria	1926 Slavery Convention ratified.
1962	Saudi Arabia	Slavery abolished.[151]
	North Yemen	Slavery abolished.[151]
	Belgium Sierra Leone Tanganyika	1926 Slavery Convention ratified.
1963	Algeria France Guinea Kuwait Nepal	1926 Slavery Convention ratified.
1964	Trucial States	Slavery abolished.
1964	Jamaica Madagascar Niger Uganda	1926 Slavery Convention ratified.
1965	Malawi
1966	Brazil Malta Trinidad and Tobago Tunisia
1967	South Yemen	Slavery abolished[155]
1968	Mongolia	1926 Slavery Convention ratified.
1969	Ethiopia Mauritius	1926 Slavery Convention ratified.
1970	Oman	Slavery abolished.[156]
1972	Fiji	1926 Slavery Convention ratified.
1973	West Germany Mali Saudi Arabia Zambia
1974	Lesotho
1976	Bahamas Barbados
1976	Kentucky	Thirteenth Amendment ratified.
1981	Mauritania	Slavery abolished.[157][158][159]
1981	Saint Vincent and the Grenadines Solomon Islands	1926 Slavery Convention ratified.
1982	Papua New Guinea
1983	Bolivia Guatemala
1984	Cameroon
1985	Bangladesh
1986	Cyprus Mauritania Nicaragua
1987	North Yemen
1990	Bahrain Saint Lucia
1992	Croatia
1993	Bosnia and Herzegovina
1994	Dominica
1995	Chile
1995	Mississippi	The Mississippi legislature unanimously votes to ratify the Thirteenth Amendment to the United States Constitution after a clerk discovers it never had. It is the last eligible state in the union to do so. However, state officials fail to send the required documentation to the state register.[160]
1996	Azerbaijan	1926 Slavery Convention ratified.
1996	Ireland	Last Magdalene Laundry closes.
1997	Kyrgyzstan Turkmenistan	1926 Slavery Convention ratified.
1998	Ghana	Forced ritual servitude of girls in Ewe shrines banned.
2001	Yugoslavia Uruguay	1926 Slavery Convention ratified.
2003	Niger	Slavery criminalized.[154]
2006	Montenegro	1926 Slavery Convention ratified.
2006	Mali	Temedt, an organization against slavery and the discrimination of former slaves, is founded in Essakane.
2007	Mauritania	Slavery criminalized.[161]
2007	Paraguay	1926 Slavery Convention ratified.
2008	Kazakhstan	1926 Slavery Convention ratified.
2009	United Kingdom	Section 71 of the Coroners and Justice Act 2009.[162]
2010	Sahrawi Arab Democratic Republic	Slavery criminalized[163]
2013	Mississippi	Ratification of the Thirteenth Amendment legally recorded.[164]
2015	United Kingdom	Modern Slavery Act 2015.[165]
2017	Navajo Nation	Criminalization of Human trafficking[166]
2017	Chad	Slavery criminalized[167]
2018	Colorado	Prison exception removed from Colorado's constitutional ban on slavery.[168]
Present	Worldwide	Although slavery is now abolished de jure in all countries,[169][170] de facto practices akin to it continue today in many places throughout the world.[171][172][173][174]

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External links

Timeline – What happened before 1807? The Royal Naval Museum
Timeline – What happened after 1807? The Royal Naval Museum
Slavery and Abolition
American Abolitionists and Antislavery Activists, comprehensive list of abolitionist and anti-slavery activists and organizations in the United States, including US and international anti-slavery timelines.

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