This video lesson from Khan Academy discusses the Three-Fifths Compromise, a compromise that was agreed upon at the Constitutional Convention. This lesson is intended for students taking high school or college level American Government...

Authors and professors James and Lois Horton, present their book, "In Hope of Liberty: Culture, Community and Protest Among Northern Free Blacks, 1700-1860." Black Bostonians gave the authors an understanding of slavery and community of...

Would Reconstruction have been different had Abraham Lincoln lived to oversee it? Lincoln's views on slavery throughout his presidency are examined in this video segment. [2:57]

What changed Lincoln's mind about slavery? Examine President Abraham Lincoln's mixed motivations for issuing the Emancipation Proclamation. [4:38]

Watch this video clip to learn about the contributions of former slave, writer and orator, Frederick Douglass, to the abolitionist movement. [3:59] Supplemental materials for both students and teachers are included.

Learn about the 1857 Supreme Court's Dred Scott decision that had the potential to legalize slavery everywhere in the United States. [2:57]

In 1833, Frederick Douglass was sent to a slave breaker in Maryland to be beaten back into submission. Watch this video segment to see how after six months of beatings, Douglass stood up to him and fought back. [2:58]

The makers of American Experience: "The Abolitionists" describe why the film was made and also the legacy of abolition, and the diversity of ordinary men and women who played a role in abolishing slavery in the U.S. [2:58]

George Mason was a slaveholder, but he came to believe that slavery was wrong. [1 min. 4 secs.]

Washington and Jefferson were opposed to slavery, but both were slaveholders. We examine their positions on slavery in this episode. [1 min. 2 secs.]

James Madison was consistently opposed to slavery throughout his life. [55 secs.]

George Mason was strongly opposed to slavery and expressed his opposition throughout his life. He felt slavery would destroy the new nation. [1 min. 28 secs.]

Unlike George Washington, George Mason never freed his slaves. He condemned slavery, but was unable to fully realize his own principles. [1 min. 11 secs.]

Free blacks were kidnapped from New York streets and sold into slavery. Some colonists were outraged. [1 min. 7 secs.]

James Madison didn't always live up to his ideals. Take slavery, for example. [1 min. 12 secs.]

Slavery wasn't good for anybody. But Madison hoped that banning importation of slaves after 1808 would diminish the slave trade. [1 min. 4 secs.]

James Madison thought that slavery was a threat to the Union. He was right. [1 min. 4 secs.]

In this Crash Course video with John Green, we learn about the election of 1860, escalating conflict between the North and South over the issue of slavery, violent confrontations in Kansas, the Kansas-Nebraska Act, the unpopularity of...

American colonists in the 1770s worked hard and lived well. But there was one serious problem that would result a century later in civil war: slavery.

American colonists in the 1770s worked hard and lived well. But there was one serious problem that would result a century later in civil war: slavery.

On today's 60-Second Civics, we learn about the issue of slavery at the Philadelphia Convention.

We continue our discussion of how slavery affected state and national powers.

This video checks information included in the fiction book entitled Magic Tree House #47: Abe Lincoln at Last! by Mary Pope Osborne. The book Fact Tracker: Abraham Lincoln, the nonfiction companion written by Will Osborne and Mary Pope...

Contains an audio and written account of the story of Sally Hemings, a slave on Thomas Jefferson's estate. NPR provides an excerpt from the book "The Hemingses of Monticello: An American Family" by Annette Gordon-Reed.