Thomas Jefferson was a founding father of the United States — but were his principles outweighed by his participation in a greater injustice? Put this controversial figure on trial and decide for yourself: | TED-Ed

The fact that Thomas Jefferson had children with his slave Sally Hemmings was denied by Jefferson's family for almost 2 centuries–until DNA evidence confirmed it. A descendent of Jefferson and Hemmings learns the details of the story. A new episode of One Thousand Years of Slavery airs this Monday at 8 PM. #1000YearsOfSlavery | Smithsonian Channel