DateJurisdictionDescription1800United StatesAmerican citizens banned from investment and employment in the international slave trade in an additional Slave Trade Act.1802FranceNapoleon re-introduces slavery in sugarcane-growing colonies.[66] OhioState constitution abolishes slavery.1803Denmark-NorwayAbolition of transatlantic slave trade takes effect on January 1.1804New JerseyAll the Northern states abolished slavery; New Jersey in 1804 was the last to act. None of the Southern or border states abolished slavery before the American Civil War.[67]HaitiHaiti declares independence and abolishes slavery.[48]18041813 SerbiaLocal slaves emancipated.1805United KingdomA bill for abolition passes in House of Commons but is rejected in the House of Lords.1806United StatesIn 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."1807United StatesInternational 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.[68]United KingdomAbolition 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.[69] WarsawConstitution abolishes serfdom.[70]PrussiaThe Stein-Hardenberg Reforms abolish serfdom.[70] Michigan TerritoryJudge 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."[71]1808United StatesImportation and exportation of slaves made a crime.[72]1810 New SpainIndependence leader Miguel Hidalgo y Costilla demands the abolition of slavery.1811United KingdomSlave trading made a felony punishable by transportation for both British subjects and foreigners.SpainThe Cdiz Cortes abolish the last remaining seigneurial rights.[43]East India CompanyThe Company issued regulations 10 of 1811, prohibiting the transport of slaves into Company territory, adding to the 1774 restrictions.[46]ChileThe 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.1812SpainThe Cdiz Constitution gives citizenship and equal rights to all residents in Spain and her territories, excluding slaves. Deputies Jos Miguel Guridi y Alcocer and Agustn Argelles argue for the abolition of slavery unsuccessfully.[43]1813 New SpainIndependence leader Jos Mara Morelos y Pavn declares slavery abolished in the documents Sentimientos de la Nacin. La PlataLaw 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.[73]1814 La PlataAfter the occupation of Montevideo, all slaves born in modern Uruguayan territory are declared free.NetherlandsSlave trade abolished.1815PortugalSlave trade banned north of the Equator in return for a 750,000 payment by Britain.[74] FloridaBritish withdrawing after the War of 1812 leave a fully armed fort in the hands of maroons, escaped slaves and their descendents, and their Seminole allies. Becomes known as Negro Fort.United KingdomPortugal Sweden-NorwayFrance AustriaRussiaSpainPrussiaThe Congress of Vienna declares its opposition to slavery.[75]1816 EstoniaSerfdom abolished. FloridaNegro Fort destroyed in the Battle of Negro Fort by U.S. forces under the command of General Andrew Jackson. AlgeriaAlgiers 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 CourlandSerfdom abolished.SpainFerdinand VII signs a cedula banning the importation of slaves in Spanish possessions beginning in 1820,[43] in return for a 400,000 payment from Britain.[74] However, some slaves are still smuggled in after this date. VenezuelaSimon Bolivar calls for the abolition of slavery.[43] New York4 July 1827 set as date to free all ex-slaves from indenture.[76] La PlataConstitution supports the abolition of slavery, but does not ban it.[43]1818United KingdomSpainBilateral treaty abolishing the slave trade.[77]United KingdomPortugalBilateral treaty abolishing the slave trade.[77]FranceSlave trade banned.United KingdomNetherlandsBilateral treaty taking additional measures to enforce the 1814 ban on slave trading.[77]1819 LivoniaSerfdom abolished. Upper CanadaAttorney-General John Robinson declares all black residents free.HawaiiThe ancient Hawaiian kapu system is abolished during the Ai Noa, and with it the distinction between the kauw slave class and the makainana (commoners).[78]1820United StatesThe Compromise of 1820 bans slavery north of the 36 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. IndianaThe supreme court orders almost all slaves in the state to be freed in Polly v. Lasselle.SpainThe 1817 abolition of the slave trade takes effect.[79]1821 MexicoThe Plan of Iguala frees the slaves born in Mexico.[43]United StatesSpainIn accordance with AdamsOns 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. PeruAbolition of slave trade and implementation of a plan to gradually end slavery.[43]Gran ColombiaEmancipation for sons and daughters born to slave mothers, program for compensated emancipation set.[80]1822 HaitiJean Pierre Boyer annexes Spanish Haiti and abolishes slavery there. LiberiaFounded by the American Colonization Society as a colony for emancipated slaves. GreeceSlavery abolished with independence.1823ChileSlavery abolished.[48]United KingdomThe Anti-Slavery Society is founded.1824MexicoThe new constitution effectively abolishes slavery. Central AmericaSlavery abolished.1825 UruguayImportation of slaves banned. HaitiFrance, with warships at the ready, demanded Haiti compensate France for its loss of slaves and its slave colony1827United Kingdom Sweden-NorwayBilateral treaty abolishing the slave trade.[77] New YorkLast vestiges of slavery abolished. Children born between 1799 and 1827 are indentured until age 25 (females) or age 28 (males).[81]1828IllinoisIn Phoebe v. Jay, the Illinois Supreme Court rules that indentured servants in Illinois cannot be treated as chattel and bequeathing them by will is illegal.[82]1829MexicoLast slaves freed just as the first president of partial African ancestry (Vicente Guerrero) is elected.[48]

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Timeline of abolition of slavery and serfdom - Wikipedia