The U.S. and the Soviet Union race to build the hydrogen bomb during the Cold War, thus beginning the nuclear arms race.
A look at five real-life "Rosies," the reality of working in defense plants during World War II and then having to give up those jobs for returning GIs.
The U.S. government's response to the Holocaust was slow and fueled by complex social and political factors.
For 21 years, Chicago mayor Richard J. Daley ruled the city, building the Sears Tower and O'Hare Airport.
The Battle of the Bulge was the biggest and bloodiest single battle American soldiers ever fought.
In the early 1830s, Texas, ruled by Mexico, held 20,000 U.S. settlers and 4,000 Mexican Tejanos, forcing residents to pick sides.
President Richard Nixon and Henry Kissinger initiated a secret diplomatic breakthrough with Mao Tse-tung that shocked and changed the world.
Harry Truman was responsible for finding America's place at the start of the Cold War. Part of the award-winning Presidents collection.