1807
The engrossed act of Congress prohibiting the importation of slaves, 1807.Image: US Congress · Public domainworld · Americas
The United States bans the Atlantic slave trade
President Thomas Jefferson signed the Act Prohibiting Importation of Slaves on 2 March 1807, making it illegal to bring enslaved people into the United States from 1 January 1808, the earliest date the Constitution allowed. Britain abolished its own slave trade three weeks later. The act did not end slavery or the trade in enslaved people within the country, which grew.
Source: US National Archives: Federal laws and the slave trade, introduction ↗
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