On August sixth, 1945, during World War Two, the United States dropped an atomic bomb on Hiroshima, Japan, killing an estimated 140,000 people in the first use of a nuclear weapon in warfare.

On August sixth, 1945, during World War Two, the United States dropped an atomic bomb on Hiroshima, Japan, killing an estimated 140,000 people in the first use of a nuclear weapon in warfare.

More than 20,000 men were killed, wounded, or missing in action in the battle of Antietam, September 17, 1862. This was the bloodiest one-day fight during the Civil War.

More than 20,000 men were killed, wounded, or missing in action in the battle of Antietam, September 17, 1862. This was the bloodiest one-day fight during the Civil War.