With over a million already dead, heroic American soldiers and nurses served in the closing battles of World War I. New mechanized weapons led to the bloodiest war of the 20th century.
The first officially formed regiment of northern black soldiers who fought in the Civil War.
The staggering death tolls of the Civil War permanently altered the character of the republic and the psyche of the American people.
American comandante William Morgan went to Cuba to help Fidel Castro return the country to a democracy. Instead, four years later, he was executed.
Lyndon Johnson pushed progressive programs before the Vietnam War eroded his support. Part of the award-winning Presidents Collection.
A minute-by-minute account, on both sides of the Pacific, leading up to the surprise attack on the U.S. fleet at Pearl Harbor.
With the clock ticking and the city under fire how many could be saved?
The international race to develop biological weapons during the 20th century.
Two days in 1967 revealed a nation divided over a war that continues to haunt us.