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TIL that chickens used to be fitted with tiny glasses to prevent eye-pecking and cannibalism. Rose-colored glasses were especially popular as they were thought to prevent chickens from seeing blood and becoming enraged.

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dDXl7 TIL The 10k steps a day benchmark was actually just a marketing campaign from a Japanese company called Yamasa who made the first wearable pedometer
XEmnD TIL about a tiny Australian marsupial that is literally sexing itself into extinction. During a 3-week sex marathon session males have so much sex their bodies produce fatal levels of testosterone, causing immune system failure that result in internal bleeding, fur loss, ulcerations and gangrene.
8GNP TIL Data for the 1890 US Census was entered on punchcards & was processed by an electromechanical tabulating machine designed/built by the company known today as IBM; it took six weeks to release the results as opposed to the 1880 census, which took seven years.
LklNP TIL in late 1920s, Lucky Strikes sold the cigarettes as a route to thinness for women. one typical ad said, "Reach for a Lucky instead of a sweet." Sales of Lucky Strikes increased by more than 300%
epE8k TIL that Henry Patch, briefly the oldest man in Europe and the last surviving soldier known to have fought in WW1, died aged 111 years, 1 month, 1 week, and 1 day