Today I Learned (TIL)

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The original was posted on /r/todayilearned by /u/Typical_Sharma on 2025-07-21 10:41:46+00:00.

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The original was posted on /r/todayilearned by /u/Typical_Sharma on 2025-07-21 09:38:07+00:00.

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The original was posted on /r/todayilearned by /u/ZenMasterZee on 2025-07-21 10:32:34+00:00.

Original Title: TIL that between 1915 and 1926, Encephalitis Lethargica, also known as sleeping sickness, swept the world. It left people frozen, awake but unable to move or speak. Half a million died or became trapped in their bodies. Then, just as suddenly as it appeared, it vanished without explanation.

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The original was posted on /r/todayilearned by /u/Typical_Sharma on 2025-07-21 09:34:21+00:00.

Original Title: TIL Argon‑Oxygen Decarburization—the main process behind 75% of the world’s stainless‑steel production—was invented in 1954 to remove carbon while preserving chromium using a mix of argon and oxygen gases

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The original was posted on /r/todayilearned by /u/ex-expatriate on 2025-07-21 03:10:08+00:00.

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The original was posted on /r/todayilearned by /u/SecureParsnip1285 on 2025-07-21 09:04:20+00:00.

Original Title: TIL about Eddie Eagan, the only person to win gold at a summer and winter olympics in different events (in boxing and the bobsled), and who also studied at Yale, Harvard and Oxford, practised as an attorney and served in both WW1 and WW2

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The original was posted on /r/todayilearned by /u/LongLiveAlex on 2025-07-21 07:16:29+00:00.

Original Title: TIL Baseball player Rickey Henderson referred to himself in third person. Reporter Tom Verducci claimed that during one off-season, Henderson called Padres general manager Kevin Towers and left this message: "Kevin, this is Rickey. Calling on behalf of Rickey. Rickey wants to play baseball."

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The original was posted on /r/todayilearned by /u/ididntplayball on 2025-07-21 05:37:13+00:00.

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The original was posted on /r/todayilearned by /u/kaze2295 on 2025-07-21 06:11:20+00:00.

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The original was posted on /r/todayilearned by /u/tyrion2024 on 2025-07-21 04:52:03+00:00.

Original Title: TIL a man noticed a loophole in a lottery called Winfall. When the jackpot hit $5m & had no winner, it was split between those who matched 3, 4 & 5 numbers. If he spent $1,100 on 1,100 tickets, he'd have 1 four-number winner & 18 three-number winners, earning $800 profit. He netted $7.75m over 9 yrs

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The original was posted on /r/todayilearned by /u/tyrion2024 on 2025-07-21 04:45:26+00:00.

Original Title: TIL in 2017 a woman received new hands from a male donor after she underwent Asia's first upper arm double-hand transplant. To the surprise of her doctors, the limbs (which were hairier & darker) became more feminine & lighter over time, resulting in their color being closer to her own skin tone.

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The original was posted on /r/todayilearned by /u/Jindabyne1 on 2025-07-21 04:33:46+00:00.

Original Title: TIL the Sateré-Mawé tribe use bullet ant stings in a warrior rite where boys wear gloves filled with hundreds of venomous ants for 10 minutes, causing paralysis, hallucinations, and days of shaking, and must endure this 20 times to complete initiation.

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The original was posted on /r/todayilearned by /u/bryson1995 on 2025-07-21 04:24:03+00:00.

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The original was posted on /r/todayilearned by /u/Prior-Student4664 on 2025-07-21 03:36:49+00:00.

Original Title: TIL that after the Battle of Waterloo, sugar factories were specifically built near the battlefield to mass-extract soldiers’ bones and char them into bleach for beet sugar — meaning 19th-century Europeans unknowingly sweetened their tea with the remains of fallen men

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The original was posted on /r/todayilearned by /u/Rayy_of_light on 2025-07-20 23:44:48+00:00.

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The original was posted on /r/todayilearned by /u/altrightobserver on 2025-07-21 00:18:19+00:00.

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The original was posted on /r/todayilearned by /u/Physical_Hamster_118 on 2025-07-20 19:04:38+00:00.

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The original was posted on /r/todayilearned by /u/poop-machine on 2025-07-20 18:51:11+00:00.

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The original was posted on /r/todayilearned by /u/Nocturnal_Pages on 2025-07-20 21:53:45+00:00.

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The original was posted on /r/todayilearned by /u/Olshansk on 2025-07-20 21:29:51+00:00.

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The original was posted on /r/todayilearned by /u/Chocolatecakelover on 2025-07-20 21:12:55+00:00.

Original Title: TIL there is a panda in china called Hua Hua who's popularity caused increased amounts of tourism in the Chengdu panda base with tourists waiting for hours to simply get a glimpse (she also has developmental delays which makes her fluffy and extra round)

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The original was posted on /r/todayilearned by /u/Nextravagant1 on 2025-07-20 20:45:42+00:00.

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The original was posted on /r/todayilearned by /u/One_Needleworker5218 on 2025-07-20 19:06:33+00:00.

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The original was posted on /r/todayilearned by /u/farligjakt on 2025-07-20 18:35:24+00:00.

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The original was posted on /r/todayilearned by /u/One_Needleworker5218 on 2025-07-20 18:13:27+00:00.

Original Title: TIL in 2020, archaeologists discovered a perfectly preserved food restaurant in Pompeii from 2,000-years-ago, complete with painted counters and traces of ancient meals like duck, snails, and goat stew still in their containers.