In Ancient Rome, a gladiator was only someone who fought against other men. If you were in the arena facing wild beasts, you were called a bestiarii. There were two types of bestiarii: those condemned to die in such a manner, and those doing it voluntarily, for pay or for glory.

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The light bulb is the universal symbol for a new idea because of Felix the Cat cartoons.

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There are sign language equivalents of tongue twisters. They’re called “finger fumblers”. These are signs that are physically challenging to articulate quickly and repeatedly in sign language, similar to how spoken tongue twisters are difficult to pronounce clearly at speed.

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At birth Dalmatians are always white.

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The Moon is slowly moving away from earth at about 3.8 cm every year.

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The retina of the human eye perceives the world upside down, and then the resulting image is turned upside down by the brain. In addition, the eye receives the image divided into halves and significantly distorted, and the brain puts it together

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If a tree were planted with the purchase of every bottle of Coca-Cola, all the forests of the Earth would be restored in three years.

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In 2009, Brian Acton wanted to apply for a job at Facebook but was turned down. A few months later, he and a friend created WhatsApp, which Facebook bought from them in 2014 for $19 billion.

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The brain does not get tired of mental work. The person feels mentally tired due to an emotional or psychological condition. The only thing that can really tire the brain is lack of sleep.

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Formication is a symptom where you hallucinate the feeling of insects crawling in, on or under your skin. This symptom can be very upsetting or disturbing, leading to other issues like self-injury from scratching or trying to get the insects out from under or inside of your skin.

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The oldest wine was discovered on the territory of modern Germany. The bottle was corked in 325 BC.

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The average person eats about 40 kg of sugar per year, including that contained in desserts, snacks and other foods.

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Almost 2/3 of people have experienced deja vu based on dreams.

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Six Million Steps from Mexico to Canada On August 7, a guy completed a hike along the Pacific Ridge Trail - 4,269 km in 96 days! This is one of the longest hiking trails in the world. Usually, people spend half a year of their lives to go through it.

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If you eat a piece of cheese 30 minutes before going to bed, you will fall asleep easier and sleep better. British scientists came to such an unexpected conclusion in 2005. The amino acid tryptophan contained in cheese has a positive effect on the state of the nervous system, stopping stress and reducing anxiety.

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Hot water freezes faster than cold water and the effect is called “the Mpemba Effect”. It’s named after Tanzanian Erasto Mpemba who was originally ridiculed for bringing it up in class after noticing his warmer ice cream mix was freezing before the cooler batch.

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Your nose constantly goes through “nasal cycles” where the 2 nasal cavities alternate being partially congested to enhance your sense of smell and help lighten the workload.

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Sloths can swim 3 times faster than they can move on land and can hold their breath for up to 40 minutes.

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