30+ facts that will change your ideas about the world (31 photos)

The boundaries of knowledge are endless, and no matter how much we study, the world will always find something to surprise us with. We suggest adding a few more amazing facts to your knowledge bank!







In the 1800s, Mary Ellen Pleasant, a black woman, made her fortune by eavesdropping on the conversations of wealthy investors for whom she worked as a servant.





In ancient Egypt, a Roman was once beaten to death by a mob after killing a cat.



This bridge in Ireland was designed so that it could be opened to allow ships to pass through. But it couldn't be opened for four years because someone lost the remote control.



Betty White is listed in the Guinness Book of World Records as the longest-running female entertainer in history. She worked on TV for 80 years - from 1939 to 2019.



In 1993, a Frenchman driving a Citroen in a remote area of ​​the Moroccan desert broke down and became stuck. To survive, he dismantled the car, built a motorcycle from the parts and rode it back to civilization. When he arrived, he was ticketed for driving an illegal vehicle.



Carrie, Stephen King's first novel and the one that launched his career, has been rescued from the trash can where the author tossed it. His wife Tabatha pulled the crumpled pages out of the trash, read them and told her husband she wanted to know the rest of the story.



Queen Elizabeth II has already reigned longer than her father, uncle, grandfather and great-grandfather combined.



The British Hedgehog Conservation Society won a campaign in 2006 to force McDonalds to change the design of its McFlurry cups after hedgehogs had repeatedly gotten stuck in them and died.



Owls cannot move their eyes because their eyes are cylinders rather than balls. They are held in place by bones called sclerotic rings. This is why owls have evolved to rotate their heads 270 degrees left and right and 90 degrees up and down.



in 1945, General George S. Patton, after the liberation of the Buchenwald concentration camp in Germany, forced 1,000 local residents to walk through the camp to see first-hand the atrocities that took place inside.



In Churchill, Canada, locals keep their car doors unlocked so other residents can quickly take cover if they encounter a polar bear.



In the mid-1890s, Mary Wheaton Caulkins completed all the requirements for a doctorate in psychology, but Harvard University refused to award her the degree because she was a woman.



The inventor of shopping carts, Sylvan Goldman, had to hire “shopper decoys” to wheel the carts around stores and demonstrate their convenience, since shoppers were initially uninterested in the invention.



In octopuses, the main element in the blood is copper, not iron, as in mammals, which is why their blood is blue. By the way, they also have three hearts to pump this blood.



Dolphins sleep with one eye open. Because they must periodically rise to the surface to breathe air and also be wary of predators, they can only rest half of their brain at a time and always remain partially conscious.



Many Victorian mothers happily used self-feeding bottles to feed their babies milk instead of breastfeeding. However, in that era, baby bottles were made of clay and glass and were incredibly difficult to clean and quickly accumulated disease-causing bacteria, leading to the death of thousands of children.



According to the U.S. Department of Education, 54% of American adults have poor literacy skills, with reading proficiency below the equivalent of a sixth grade level.



Ismail al-Jazari wrote the Book of Knowledge of Cunning Mechanical Devices, which described 50 mechanical devices along with instructions on how to create them. He is called the father of robotics and modern engineering.



Little Frankie Goldsmith was one of the survivors of the Titanic. His father died in the disaster, and Frankie and his mother came to America and settled in Detroit near Tiger Stadium. However, Frankie never attended the games because of the crowd's screams, which reminded him of the screams of those dying in the water.



Project 100k, developed in the 1960s by US Secretary of Defense Robert McNamara, was intended to lower the mental and medical requirements for recruits in order to recruit more soldiers for the Vietnam War. As a result, these soldiers died about 3 times more often than others.



In 1941, nearly 10% of all US Army recruits were rejected because they did not have six opposing teeth in their upper and lower jaws. Dentistry in the United States before World War II was so undeveloped that it was a leading cause of draft refusal.



In Norse mythology, Loki became pregnant with a horse and as a result gave birth to the eight-legged horse Sleipnir, who became Odin's horse.



Leonardo da Vinci left behind more than 13,000 pages of notes and drawings on anatomy, physiology, engineering, mechanics, geometry, mathematics, bird flight, aircraft, botany, proportions, topology, weapons, musical instruments, art and much more. All of them are written in mirror stenography, that is, from right to left.



Keanu Reeves was offered the lead role in The Matrix after 5 leading actors of the 1990s turned it down.



Uday Hussein, son of Saddam Hussein, was appointed chairman of the Iraqi Olympic Committee in 1984. Athletes who disappointed him were subject to torture and imprisonment.



To rescue children from a flooded cave in Thailand in 2018, rescuers drugged the children and then dragged them underwater more than 1 kilometer to the caves' exit.



The film "Gremlins" was initially rated "Except for children under 13 years of age."



The Mongols had a superstition that the shedding of royal blood would lead to great disaster. So instead, they had other creative ways to execute members of the royal family. They could sew up all the holes in a person's body, drown him in molten metal, or trample him under horses.



Adolf Hitler initially planned to resettle all Jews in Madagascar, but then opted for a plan to completely exterminate them.



An Oregon high school football coach was fired for trying to take his team to Hooters, a restaurant with scantily clad waitresses, to celebrate the end of the season.