Many toothpaste companies advertise activated charcoal toothpastes. Activated charcoal is a fine powder created by heating carbon-rich materials like wood at extremely high temperatures. Many believe that charcoal toothpaste is excellent for teeth-whitening and can even strengthen the teeth. Dentists, on the other hand, advise us to avoid charcoal toothpaste because there is no scientific evidence to support these claims. Charcoal can weaken and remove tooth enamel, causing gum recession.

One of the largest earthquakes on record struck the southern coast of Chile, killing about 5,700 people and creating seismic sea waves that caused death and destruction in distant Pacific coastal areas, notably Japan and Hawaii.

🐶 Many people die under snow avalanches in Switzerland. Rescue dogs are your chance. The photographer who took this picture got lucky and was saved by a dog

First nonstop solo transatlantic flight made by Charles Lindbergh
American aviator Charles Lindbergh completed the first nonstop solo flight across the Atlantic Ocean on this day in 1927, traveling from New York to Paris in the monoplane Spirit of Saint Louis in about 33.5 hours.

U.S. Homestead Act signed
On this day in 1862, U.S. President Abraham Lincoln signed the Homestead Act, which provided 160 acres of public land virtually free of charge to those who had lived on and cultivated the land for at least five years.

Before he could record any dialogues for Toy Story 4 (2019), comedian Don Rickles unfortunately passed away. But instead of replacing him, an editorial team collected more than 20 years' worth of the comedian's voice sessions and outtakes. Using this database, the movie's director and screenwriters were able to create lines for Rickles' character, Mr. Potato Head.

Kuwait has no permanent rivers or lakes, and the country relies on water desalination as a primary source of fresh water for domestic purposes and drinking. Currently, Kuwait has over six desalination plants in operation, and it was the world’s first country to use desalination for supplying water for large-scale domestic use.

Abuna Yemata Guh is a monolithic church in the Hawzen woreda of the Tigray Region in Ethiopia. The church is located at a height of 2,580 meters (8,460 feet) and can only be reached by climbing on foot. It is known for its dome and wall paintings that date back to the 5th century.

The Murchison meteorite is one of the oldest known rocks. In 2020, experts reported that the meteorite contained certain particles that were about 7 billion years old, older than even the Solar System. It was also found to contain amino acids, the building blocks of proteins.

Kanō Jigorō is known as the Father of Judo, a popular Japanese martial art. Despite being smaller in size, he is said to have been able to overthrow larger individuals than him. Once, while sparring with such an opponent, Kanō actually managed to beat him by incorporating a western wrestling move.

River Monsters, one of Animal Planet's top-performing shows, ended after nine seasons reportedly because star, Jeremy Wade, had already caught essentially every exceptionally large or dangerous fish out there, and they had run out of monsters to uncover.

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Decorator crabs decorate themselves by sticking plants and animals from their environment to their bodies. It mainly serves as camouflage against predators, but also makes them look fabulous!

Two of Charles Darwin's notebooks worth millions of pounds were reported stolen from Cambridge University's library. They have now been mysteriously returned, about two decades after their disappearance. The notebooks, still in good condition, were left in the library inside a pink gift bag.

This stunning indoor rainbow is not created by sunlight. It is actually an artwork made by Gabriel Dawe, who used 60 miles of ordinary embroidery thread to create this ethereal and shimmery pattern that creates the optical illusion of a rainbow.

School segregation outlawed by U.S. Supreme Court
On this day in 1954, lawyer Thurgood Marshall scored a landmark victory as the U.S. Supreme Court unanimously ruled in Brown v. Board of Education of Topeka that racial segregation in public schools was unconstitutional.

Vasa is a Swedish warship that sank in 1628, after sailing about 1,300 meters (1,400 yards) into her maiden voyage. 333 years later, in 1961, she was salvaged with most of her wood still intact. Today, the ship is housed in Stockholm’s Vasa Museum and is said to be the world’s best preserved ship from the 17th century.

Lithops, also known as living stones or pebble plants, is a genus of succulent plants that evolved to look like stones. Native to southern Africa, the plants' unique appearance helps them to blend in with the surrounding rocks, and that's how they avoid being eaten.

Edith Cresson appointed French premier
On this day in 1991, Edith Cresson of the Socialist Party became the first female premier of France, but she lost the office less than a year later because of rising unemployment and declining support from within her party.

Dave Thomas, who was an early KFC cook and a mentee of Col. Sanders, came up with the rotating red bucket sign and convinced the colonel to appear in TV ads. He took over four struggling KFC franchises and later sold his stake back to the colonel for $1.5 million. He used the money to open his own restaurant, Wendy's.

Warsaw Ghetto Uprising suppressed
On this day in 1943, Nazi troops quelled the monthlong Warsaw Ghetto Uprising, in which Polish Jews, led by Mordecai Anielewicz and the Jewish Fighting Organization, resisted deportation to the Treblinka extermination camp.