President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
It was the deadliest workplace accident in New York City’s history.
Robert Noyce's invention of the microchip launched the world into the Information Age.
The U.S. and the Soviet Union race to build the hydrogen bomb during the Cold War, thus beginning the nuclear arms race.
In 1960, Francis Gary Powers' U-2 spy plane was shot down over the Soviet Union.
During the Great Depression, Americans built the Hoover Dam, one of the greatest engineering works in history.
The boy behind the myth, who in just a few short years transformed himself from a skinny orphan to the most feared man in the West and an enduring icon. Part of The Wild West collection.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.