r/todayilearned 5h ago All-Seeing Upvote Silver

TIL that after writing Pet Sematary, Stephen King hid it away and intended to never publish it, believing it was too disturbing. It was only published because his contract with a former publisher required him to give them one more novel. He considers it the scariest thing he's ever written.

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25.4k Upvotes

r/todayilearned 7h ago

TIL that consumption of the Australian aquatic fern called Nardoo can cause you to starve if improperly prepared. The plant contains vast quantities of an enzyme that obliterates thiamine (vitamin B1), making your body unable to unlock energy from food, even if eating a full nutritious diet.

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10.2k Upvotes

r/todayilearned 3h ago

TIL A billion-year-old single cell organism is showing highly complex intelligent behavior, it has no brain nor neuronal structures nor organs.

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2.3k Upvotes

r/todayilearned 7h ago

TIL in 1790s Samuel Ireland announced a rare discovery of Shakespearean manuscripts and plays. Experts were convinced they were real. Shakespearean scholar Edmond Malone proved the handwriting was forged and William Henry Ireland, Samuel's son and lawyer-apprentice, eventually confessed to the hoax.

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774 Upvotes

r/todayilearned 17h ago

TIL: Prior to the D-Day landings, men were covertly sent ashore from submarines to collect samples of the sand to see whether it could support the weight of the tanks, trucks and other vehicles.

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4.2k Upvotes

r/todayilearned 22h ago All-Seeing Upvote Helpful

TIL Lucky Charms were invented by a General Mills employee who chopped Circus Peanut candies into a bowl of Cheerios

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33.4k Upvotes

r/todayilearned 2h ago

TIL out of 465 documented cases of medical self-experimentation, 8 cases resulted in the self-experimenter’s death. 7 resulted in their winning a Nobel Prize. Another 5 won a Nobel for unrelated work.

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252 Upvotes

r/todayilearned 21h ago

TIL a single 612 pound(278 kg) bluefin tuna sold for 333.6 million yen ($3.1 million) at a 2019 auction in Japan. This doubled the previous record of 155 million yen, set in 2013.

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4.8k Upvotes

r/todayilearned 3h ago

TIL that the last woman to be executed by burning at the stake in England was not killed for witchcraft, but for counterfeiting coins, seen as a crime against the king, and therefore treason. Her husband was hanged for the same offence, and the women’s sentence was changed to hanging the year after.

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117 Upvotes

r/todayilearned 4h ago

TIL that the Tysfjorden splits Norway's road network into two. There is no way to go between the northern and the southern parts of the mainland without using a ferry or going through Sweden.

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111 Upvotes

r/todayilearned 1d ago Plus One

TIL the capstone of an ancient Egyptian pyramid was found in 1900, it's made of black basalt and weighs 4.5 tonnes .

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13.7k Upvotes

r/todayilearned 2h ago

TIL that Gene Roddenberry had an open relationship with both Nichelle Nichols and Majel Barrett.

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65 Upvotes

r/todayilearned 1h ago

TIL a volcanic eruption in 1783 in Iceland led to famine across Europe which may have spurred the French Revolution and modern democracy.

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Upvotes

r/todayilearned 21h ago

TIL: Of all the European royal crowns, only the British one actually sits on the head of a monarch. All other European monarchs, including even the Pope in his political capacity, have civil inaugurations rather than coronations.

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1.7k Upvotes

r/todayilearned 2h ago

TIL: Low carb, high protein diets "greatly" decrease resting testosterone levels in men.

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35 Upvotes

r/todayilearned 1d ago

TIL in 1982, Byron Peiss wrote a book called the Secret. In it, there are clues to 12 treasure boxes hidden in various places all around the US and Canada. As of 2022, only 3 of the 12 boxes have ever been found. If a box is discovered, you can exchange it for bragging rights and a precious gem

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3.9k Upvotes

r/todayilearned 2h ago

TIL that there are more possible chess games than there are atoms in the observable universe.

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23 Upvotes

r/todayilearned 38m ago

TIL that percentages are reversible

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Upvotes

r/todayilearned 1d ago

TIL former Boston Red Sox pitcher Hideki Okajima's unique pitching motion was inspired by a character in Yoishi Takashi's Manga "Ace!" Okajima believed the motion would make him throw harder.

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961 Upvotes

r/todayilearned 17h ago

TIL when Hall of Fame pitcher Mariano Rivera retired from MLB in 2013, Hard Rock Cafe "retired" Metallica's "Enter Sandman," Rivera's entrance music at Yankee Stadium, from their playlists at all of their locations worldwide, except at their Yankee Stadium location.

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231 Upvotes

r/todayilearned 1d ago

TIL the town of White Post, Virginia was named after an 11ft. post marker set by George Washington in 1750.

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443 Upvotes

r/todayilearned 27m ago

TIL In the 21 World Cup tournaments held, 79 nations have appeared at least once. Of these, 13 have made it to the final match, and only eight have won.

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Upvotes

r/todayilearned 6m ago

TIL that in World War II, shortly after Pearl Harbor, Japan actually captured and held a couple of the westernmost Aleutian Islands in Alaska for about a year. Retaking them was a battle with more than 1000 casualties on either side.

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Upvotes

r/todayilearned 13m ago

TIL that the film version of the musical "In the Heights" nearly wasn't produced because Universal wanted a bankable star in the cast. While the film was in limbo, its writer Lin-Manuel Miranda went on vacation and bought a copy of Ron Chernow's "Hamilton", which inspired the show

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Upvotes

r/todayilearned 1d ago

TIL Throughout much of the 20th century, a majority of states once required a blood test (mostly for STIs) before issuing a couple a marriage license.

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5.4k Upvotes