From the first photo ever taken to the first photo ever uploaded to the internet, these are the groundbreaking firsts that define the history of photography.

Before the concentration camps, the Nazis' victims endured another kind of hell inside the walls of the Jewish ghettos.

Some of the biggest stars in music are sexual predators and pedophiles. Most don't even deny it. Some even wrote songs about it.

During the Battle of the Bulge, the Nazis had intended on surrounding the Allies, crushing them, and chasing them out of Europe. However, the Allied Army had other plans.

From the Bowery Boys to the Dead Rabbits, meet the Five Points gangs that were the real-life gangs of New York in the 1800s.

How William Levitt birthed the American suburb — upon a foundation of racism that echoes to the present day.

Is the My Lai Massacre the greatest shame in the history of the U.S. military?

Has "America First" violence changed all that much over the last century?

The U.S. has detonated more than 1,000 bombs, killing more than 2 million of its own people — and for what?

The death toll estimates of the Bengal famine vary so wildly because, at some point, there were simply too many dead to count.

During the Banana Wars of the early 20th century, the U.S. military toppled regimes and massacred thousands to keep U.S. business booming.