The first officially formed regiment of northern black soldiers who fought in the Civil War was formed after President Lincoln's Emancipation Proclamation and consisted mostly of free men.
In the early 1830s, Texas, ruled by Mexico, held 20,000 U.S. settlers and 4,000 Mexican Tejanos, forcing residents to pick sides.
On June 6, 1944, Allied troops invaded Normandy, fighting to free Europe from Nazi occupation and end World War II.
Harry Truman was responsible for finding America's place at the start of the Cold War. Part of the award-winning Presidents collection.
Winner, 2010 Peabody Award --- The 1968 My Lai massacre, its subsequent cover-up, and the soldiers who broke ranks to bring the atrocity to light.
While the U.N. debated strategies for control of atomic energy, the U.S. Navy was preparing for nuclear tests on Bikini Island.
In the summer of 1940, 10,000 children were sent from wartime Britain to the United States.
Ten years after American troops arrived in South Vietnam, communists seized Saigon in an attack that brought the war to a startling conclusion.
With the clock ticking and the city under fire how many could be saved?