D.B. Cooper: Man who hijacked a plane and jumped out with a $200,000

For years, scientists didn’t know what caused mysterious cave networks in South America. In 2010, they learned that the caves were actually tunnels dug by ancient giant sloths

In 1939, George Dantzig arrived late to his statistics class. On the board were two famous “unsolved” problems in statistics written as an example by his professor. Dantzig mistook the examples for homework assignments. He solved the “unsolved” problems and submitted the homework to his professor a few days later. His solutions earned him a doctorate.

During WW2, there was a special unit of men dubbed the ‘Ghost Army’. The unit was made of artists, creative and engineers and their job was to create deception about the enemy. From inflatable tanks to phony convoys to scripted conversations in bars intended to spread disinformation, they used all possible tricks to fool the enemy.

Marion Stokes, a Philadelphia woman began taping whatever was on television in 1979 and didn’t stop until her death in 2012. The 71,000 VHS and Betamax tapes she made are the most complete collection preserving this era of TV. They are being digitized by the Internet Archive.

Polish troops raised an orphaned bear cub during WWII. He enjoyed drinking beer, and was trained to salute. He became officially enlisted as a member of the forces, and helped carry artillery during battle.

A man named Nicholas Winton saved 669 kids during WWII and lived almost all his life without letting people know.

Archduke Franz Ferdinand of Austria and his wife Sophie are shot to death by a Bosnian Serb nationalist during an official visit to the Bosnian capital of Sarajevo on June 28, 1914. The killings sparked a chain of events that led to the eruption of World War I by early August.

Hundreds of young women worked in clock factories during World War I, painting watch dials with luminous radium paint. The company lied about the risk of radiation, claiming there was no danger, which resulted in the death of the young women.

Bill Haast immunized himself by injecting snake venom into his blood for several years. He holds the Guinness World Record for surviving the most lethal snake bites, having been bitten over 172 times. Bill became known as "Snake Man" around the world and lived for over 100 years.

In 1985, after an 8.0 magnitude earthquake hit Mexico City, nearly all newborn babies survived a collapsed hospital. They are known as “Miracle Babies” for surviving 7 days without nourishment, water, warmth or human contact.

Roller coasters were invented to distract Americans from sin. In the 1880s, hosiery businessman LaMarcus Thompson didn’t like that Americans were going to places like saloons and brothels and created the first roller coaster on Coney Island to persuade them to go there instead.

Lina Medina, a five-year-old Peruvian girl, became the youngest mother in history in 1939 when she gave birth to a boy.

Thomas Baker instructed his team to leave him with a pistol and eight bullets propped up against a tree after he was injured. Later, American troops discovered the now-deceased Baker in the same location, lying next to eight dead Japanese soldiers and carrying an empty pistol.

In 1859, wealthy settler Thomas Austin released 13 wild rabbits on his Australian estate. By 1920, their population grew to 10 billion.

Sony's PlayStation was never meant to be an actual product. Instead, it was intended to be a CD-ROM console that would support Nintendo games. However, when Nintendo backed out of the deal at the last minute, Sony went ahead and launched what soon became one of the most successful gaming consoles of all time.

These are the mugshots of Will West and William West, and they are not related. They were both sent to Leavenworth Prison at the same time, in 1903, and after some confusion, the staff understood they had two different prisoners with the nearly same name, who looked exactly alike. They are part of the reason fingerprints are now used as identification.

Philippines is the world’s largest supplier of nurses, supplying roughly 25% of all overseas nurses worldwide.

Martin Couney never qualified as a medical doctor. However, in the 1900s, he saved thousands of premature babies by exhibiting them in incubators at his Coney Island sideshow. Over the course of his career, he is said to have saved about 6,500 babies that had previously been written off by mainstream medicine.

In 1814, there was a beer flood in London when a tank containing more than 300,000 gallons ruptured in which 8 people drowned.

Poto and Cabengo, as the two girls called each other, communicated in their own language. The twins were ignored by their parents and secluded from the outside world because their father felt they were developmentally retarded, and their unique language evolved as a result of that neglect.

Nathan "Nearest" Green was an African-American head stiller who is now more frequently referred to as a master distiller. He was renowned for imparting his distilling knowledge to Jack Daniel, the creator of Jack Daniel's Tennessee whiskey distiller, after Jack Daniel was freed from slavery following the American Civil War.

The roaring 1920s revolutionized fashion, introducing bold styles, daring cuts, and a spirit of freedom that still inspires today’s wardrobes. From flapper dresses to statement accessories, here’s how the Jazz Age lives on in modern fashion.

Between 1764 and 1767, a mysterious animal called the Beast of Gévaudan terrorized the French village called Gévaudan. It attacked and killed about 100 adults and children. While most believe it was a wolf, some say it may have been a wolf-dog hybrid, hyena or even a lion, but without any genetic evidence, the beast will remain a mystery forever.

The unbroken seal of Tutankhamun's tomb before it was opened in 1923, it was unbroken for over 3000 years.

In 1944, George Stinney Jr. was 14 years old when he was executed in South Carolina. It took only ten minutes to convict him — and 70 years to exonerate him.