John Watt's steam engine not only streamlined travel and manufacturing, but was also an impetus for the Industrial Revolution.

He worked for both the Medellin Cartel and the DEA, but eventually, his double life would come crashing down.

For three days in 1934 that Hitler called the "Night of the Long Knives," the chancellor ordered the execution of some 400 Nazis whom he feared threatened his power.

A 2008 study led by the Smithsonian Institute found that likely all the 13 life-size quartz crystal skulls are likely fakes.

The case of Dr. Sam Sheppard was so controversial from the outset that the federal court later ruled his initial trial a "mockery of justice."

Despite a burgeoning history, deep-seated racial tensions would eventually dismantle the town, rendering it nearly abandoned today.

A gentleman gunslinger who could quote Shakespeare, Johnny Ringo was a mythic gunslinger who died a mysterious death befitting his legend.

Purchased by a wealthy Scottish widow in 1864, the family-owned island is committed to preserving its natural and cultural history — perhaps at a dangerous cost.

Historians disagree on how cruel Shaka truly was as a ruler, but his military prowess was indisputable.

The uniform featured an all-leather ensemble with a beak-like mask stuffed with burning herbs and a top hat — which signaled that the person was, in fact, a doctor.

The Trail of Tears refers to the perilous journey of the 'Five Civilized Tribes' of the Southeast who were forced from their ancestral homelands to a designated zone in the west.