Which document ended slavery throughout the United States in 1865?

13th Amendment

What movie depicting Mafia family life starred Marlon Brando? In which city is the movie "The Hangover" primarily set? What lasting peace treaty ended conflicts from Napoleon’s wars, held in Austria in 1814-1815? What year saw the first televised American presidential debate? Who created the nationwide network of women's temperance organizations in the late 1800s?