Today I Learned (TIL)

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The original was posted on /r/todayilearned by /u/CA6NM on 2025-06-16 23:10:39+00:00.

Original Title: TIL Argentina's Naval Aviation baptism of fire was on its own population. On 16 June 1955, 30 aircraft from the Argentine Navy and Air Force bombed and strafed Plaza de Mayo and opened fire on the population killing 300 and injuring over 800 in an attempt to assassinate Perón.

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The original was posted on /r/todayilearned by /u/Octavus on 2025-06-16 22:23:11+00:00.

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The original was posted on /r/todayilearned by /u/DoktorSigma on 2025-06-16 18:47:58+00:00.

Original Title: TIL that "arms" and "tentacles" are two different structures in cephalopods. Arms have suction cups along the whole length, while tentacles have them just at the end. Squids have both arms and tentacles, octopuses have just arms.

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The original was posted on /r/todayilearned by /u/bnrshrnkr on 2025-06-16 19:40:06+00:00.

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The original was posted on /r/todayilearned by /u/Fun_Atmosphere8071 on 2025-06-16 19:33:38+00:00.

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The original was posted on /r/todayilearned by /u/CatPooedInMyShoe on 2025-06-16 19:20:41+00:00.

Original Title: TIL that in 2023, a man in Peru was caught with a restaurant delivery bag containing a mummified corpse 600 to 800 years old. The man said the mummy was his "spiritual girlfriend" and referred to it as Juanita. When authorities confiscated the mummy and examined it, it turned out to be a male.

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The original was posted on /r/todayilearned by /u/Accurate_Cry_8937 on 2025-06-16 18:23:11+00:00.

Original Title: TIL that Expert systems were among the first truly successful forms of AI software.They were created in the 1970s and then proliferated in the 1980s,being then widely regarded as the future of AI — before the advent of successful artificial neural networks.

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The original was posted on /r/todayilearned by /u/Sanguinusshiboleth on 2025-06-16 18:09:16+00:00.

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The original was posted on /r/todayilearned by /u/parkside1750 on 2025-06-16 17:51:46+00:00.

Original Title: TIL Jack Toper, an RAF wireless operator in WW2, was a member of the 'guinea pig club' for RAF members who suffered burns. Medical records show skin from his stomach is attached to his arm and grafted onto his face to make a new nose.

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The original was posted on /r/todayilearned by /u/waitingforthesun92 on 2025-06-16 17:45:54+00:00.

Original Title: TIL that the Colosseum in Rome once had 80 entrances - 4 of which were reserved for the emperors, senators, and people of high order. The other 76 were general entrances for spectators. Today, the Colosseum has only 3 entrances.

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The original was posted on /r/todayilearned by /u/VelvetDreamers on 2025-06-16 17:44:50+00:00.

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The original was posted on /r/todayilearned by /u/Rjfngwui-hiigsj on 2025-06-16 14:19:18+00:00.

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The original was posted on /r/todayilearned by /u/originalchaosinabox on 2025-06-16 15:04:56+00:00.

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The original was posted on /r/todayilearned by /u/737Max-Impact on 2025-06-16 15:02:20+00:00.

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The original was posted on /r/todayilearned by /u/tyrion2024 on 2025-06-16 15:01:05+00:00.

Original Title: TIL when DMX was facing 5 yrs in prison for tax evasion, his lawyer played his song "Slippin'" for the judge to illustrate how far he had come since his "horrific childhood" in the hope for leniency. Indeed, the judge was affected by the circumstances of DMX's upbringing & sentenced him to just a yr

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The original was posted on /r/todayilearned by /u/CryptidToothbrush on 2025-06-16 13:40:46+00:00.

Original Title: TIL about Henry Rathbone. He was present in the booth with Lincoln during the assassination. He later went crazy and shot and stabbed his wife to death and also stabbed himself 5 times in an attempted suicide.

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The original was posted on /r/todayilearned by /u/ALSX3 on 2025-06-16 14:13:49+00:00.

Original Title: TIL in December 2018, lean finely textured beef(pink slime) was reclassified as "ground beef" by the Food Safety And Inspection Service of the United States Department Of Agriculture. It is banned in Canada and the EU.

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The original was posted on /r/todayilearned by /u/Suitable-Fee-3083 on 2025-06-16 13:51:54+00:00.

Original Title: TIL First Lady of the Confederacy Varina Davis did not support slavery, supported women's suffrage, and always thought the Confederacy was doomed to lose the war. Her tenure as First Lady was described as, "a disaster," mostly because people noticed her ambivalence to the role.

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The original was posted on /r/todayilearned by /u/me_myself_ai on 2025-06-16 13:32:48+00:00.

Original Title: TIL New Zealand was removed from the US' "Nuclear Umbrella" in 1986 as punishment for advocating global disarmament, which means that any country could strike them without facing retaliatory (nuclear) strikes.

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The original was posted on /r/todayilearned by /u/tyrion2024 on 2025-06-16 13:29:55+00:00.

Original Title: TIL Warren Buffett’s investment prowess led to Berkshire Hathaway generating a 19.8% annualized return from 1965-2023, nearly doubling the 10.2% return the S&P 500 had over that time. In 2024, Berkshire Hathaway became the first nontechnology company to top a $1 trillion market capitalization.

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The original was posted on /r/todayilearned by /u/DangerNoodle1993 on 2025-06-16 13:25:40+00:00.

Original Title: TIL of The British pet massacre, where an estimated 750,000 cats and dogs, a quarter of England's pet population, were euthanized due to a government pamphlet suggesting the public do so, at the beginning of WW2.

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The original was posted on /r/todayilearned by /u/UnspecifiedDamages on 2025-06-16 12:44:55+00:00.

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The original was posted on /r/todayilearned by /u/tyrion2024 on 2025-06-16 13:03:20+00:00.

Original Title: TIL a 2019 study named 'Magic: The Gathering' the most complex game in the world after it found that no algorithm existed that was capable of determining a winning strategy for it. The analysis established "that MTG is the most computationally complex real-world game known in the literature."

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The original was posted on /r/todayilearned by /u/DangerNoodle1993 on 2025-06-16 12:17:54+00:00.

Original Title: TIL that when the Britannic, which was the sister ship of the Titanic, struck a German mine and began to sink, two lifeboats full of passengers left the ship without permission and were pulled into the vessel’s rotating propellers.

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The original was posted on /r/todayilearned by /u/fellanyyy on 2025-06-16 09:08:12+00:00.