Ugandan president Idi Amin Dada was a violent dictator whose regime was responsible for some of the worst atrocities in his country's history. Find out more about his brutal reign in this video.

As the Civil War teetered, Lincoln weighed the Emancipation Proclamation—an audacious act that reshaped the nation’s course.

Doris Kearns Goodwin shares how President Lyndon B. Johnson, despite fierce resistance, rose to meet a defining moment in U.S. history.

With Europe under Nazi rule and Britain low on funds, Roosevelt and Churchill met in secret to strike a bold wartime agreement.