Abolitionism in the United States

In the United States, abolitionism, the movement that sought to end chattel slavery in the country, was active from the colonial era until the American Civil War, the end of which brought about the abolition of American Chattel Slavery, except as punishment for a crime, through the Thirteenth Amendment to the United States Constitution (ratified 1865). The anti-slavery movement originated during the Age of Enlightenment, focused on ending the transatlantic slave trade.

Source: Wikipedia — Abolitionism in the United States (CC BY-SA 4.0)