Twelve Years a Slave is an 1853 memoir and slave narrative by American Solomon Northup as told to and written by David Wilson. Northup, a black man who was born free in New York state, details himself being tricked to go to Washington, D.C., where he was kidnapped and sold into slavery in the Deep South. He was in bondage for 12 years in Louisiana before he was able to secretly get information to friends and family in New York, who in turn secured his release with the aid of the state. Northup's account provides extensive details on the slave markets in Washington, D.C. and New Orleans, and describes at length cotton and sugar cultivation and slave treatment on major plantations in Louisiana.

The work was published eight years before the Civil War by Derby & Miller of Auburn, New York, soon after Harriet Beecher Stowe's best-selling novel about slavery, Uncle Tom's Cabin (1852), to which it lent factual support. Northup's book, dedicated to Stowe, sold 30,000 copies, making it a bestseller in its own right.After being published in several editions in the 19th century and although later cited by specialist scholarly works on slavery in the United States, the memoir fell into public obscurity for nearly 100 years. It was re-discovered on separate occasions by two Louisiana historians, Sue Eakin (Louisiana State University at Alexandria) and Joseph Logsdon (University of New Orleans). In the early 1960s, they researched and retraced Solomon Northup's journey and co-edited a historically annotated version that was published by Louisiana State University Press (1968).The memoir has been adapted as two film versions, produced as the 1984 PBS television film Solomon Northup's Odyssey and the Oscar-winning 2013 film 12 Years a Slave.

Solomon Northup (born July 10, c. 1807 or 1808) was an American abolitionist and the primary author of the memoir Twelve Years a Slave. A free-born African American from New York, he was the son of a freed slave and a free woman of color. A farmer and a professional violinist, Northup had been a landowner in Washington County, New York. In 1841, he was offered a traveling musician's job and went to Washington, D.C. (where slavery was legal); there he was drugged, kidnapped, and sold as a slave. He was shipped to New Orleans, purchased by a planter, and held as a slave for 12 years in the Red River region of Louisiana, mostly in Avoyelles Parish. He remained a slave until he met Samuel Bass, a Canadian working on his plantation who helped get word to New York, where state law provided aid to free New York citizens who had been kidnapped and sold into slavery. His family and friends enlisted the aid of the Governor of New York, Washington Hunt, and Northup regained his freedom on January 3, 1853.The slave trader in Washington, D.C., James H. Birch, was arrested and tried, but acquitted because District of Columbia law at the time prohibited Northup as a black man from testifying against white people. Later, in New York State, his northern kidnappers were located and charged, but the case was tied up in court for two years because of jurisdictional challenges and finally dropped when Washington, D.C. was found to have jurisdiction. The D.C. government did not pursue the case. Those who had kidnapped and enslaved Northup received no punishment.

In his first year of freedom, Northup wrote and published a memoir, Twelve Years a Slave (1853). He lectured on behalf of the abolitionist movement, giving more than two dozen speeches throughout the Northeast about his experiences, to build momentum against slavery. He largely disappeared from the historical record after 1857, although a letter later reported him alive in early 1863; some commentators thought he had been kidnapped again, but historians believe it unlikely, as he would have been considered too old to bring a good price. The details of his death have never been documented.Northup's memoir was adapted and produced as the 1984 television film Solomon Northup's Odyssey and the 2013 feature film 12 Years a Slave. The latter won three Academy Awards, including Best Picture, at the 86th Academy Awards.