Here's a question for your next trivia game: How many slaves did the Emancipation Proclamation free? Answer: Zero. See more »

Harriet Tubman was known as "the Moses of her people" for her work on the Underground Railroad. How much do we really know about this secret system? See more »

Emancipation Proclamation, in the American Civil War, an order issued by President Abraham Lincoln on January 1, 1863, freeing the slaves in states that were "in rebellion" against the United States. See more »

Missouri Compromise, an 1820 agreement that settled the slavery question for about 30 years. See more »

Arguments over the issue of slavery developed in Congress after Missouri, part of the Louisiana Purchase area, applied in 1818 for admission as a state. See more »

Slavery, a system under which an individual is held as the property of another to be used or disposed of at the will of the owner, or master. See more »

Underground Railroad, a name applied to an informal network that aided runaway slaves from the South before the Civil War. See more »

Abolitionist, in United States history, a person who urged the immediate freeing of the slaves regardless of the Constitution, laws, or property rights. See more »

Amistad Mutiny (also known as Amistad Case). In 1839 off the coast of Cuba, Africans held as slaves aboard the ship Amistad were led by a fellow captive named Cinque in revolt against their Spanish captors. See more »

Attucks, Crispus (1723 - 1770), an American killed in the Boston Massacre on March 5, 1770. See more »