Samuel Morse first got the idea to invent the electric telegraph in 1832, and by the time he died 40 years later, it was possible to send a message from America to Europe within minutes.

On September 11, 2001, Tom Burnett helped lead the passenger revolt against the hijackers aboard United Flight 93 — and saved untold lives in the process.

Also known as the wooden horse or the chevalet, variations of the Spanish donkey were used from the Middle Ages all the way up until the American Civil War in the 1860s.

Experience the terror of the Mermaid Inn, the Hotel Cecil, and more of the world's most haunted hotels — and learn their stories of murder, mayhem, and mystery.

As a successor to the helm of the Sinaloa Cartel, Ivan Archivaldo Guzmán Salazar began trafficking drugs as a teenager. Now, he has reportedly expanded his father's empire to include meth and fentanyl.

In November 1989, Kim Broderick's mother Betty Broderick shot and killed her ex-husband Dan and his new wife Linda Kolkena in a jealous rage — then Kim delivered damning testimony against her.

From Jimi Hendrix jamming in the Army to Lady Gaga playing dive bars, see some of history's most iconic rock stars on the cusp of fame.

Throughout the early 20th century, St. Louis, Missouri, was among the most progressive and prosperous towns in America. So what turned the Gateway City into a crime-ridden ghost town?

Nearly 2,000 pounds of cocaine were sent to grocery stores across the Czech Republic in a bungled smuggling attempt.

After more than a century of defying classification, this eel-like creature was finally placed in the evolutionary tree of life — potentially as the earliest-known ancestor of humankind.

The Department of Conservation has estimated that around 200 dead little blue penguins are washing ashore every single day as a result of rising ocean temperatures.