These ancient world maps might be inaccurate, but they were once thought to be exemplars of cartography.

One out of every five people who enlisted in the Civil War was under the age of 18.

During the Nanking Massacre and the Japanese invasion of China, Nazis like John Rabe and Alexander von Falkenhausen saved hundreds of thousands of lives.

These authentic vintage photographs of the American frontier reveal what life was actually like in the "Wild West."

In the early 1930s, the Lomax brothers headed South to document the music coming from African-American porches, and the people making the music.

Haunting images of the Qing dynasty Chinese culture and society that the nation's leaders wiped out after the communist revolution.

In many instances, children -- not adults -- stood at the forefront of the Civil Rights Movement.

Before Yuri Gagarin and Neil Armstrong came Laika the Soviet space dog and Ham the Chimpanzee.

Modern plastic surgery has its roots in war and medical necessity.

These haunting images taken inside human zoos reveal the dark secret of Europe and America's not-so-distant colonial past.

These seldom-seen photos reveal what "normal" life in Nazi Germany looked like for most citizens as the Third Reich rose to power.