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Short answer: Every once in a (very long) while

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wLBy6 TIL: Ceiling Fans have a directional switch (counter-clockwise & clockwise) that are meant for Warm & Colder Seasonal Months to benefit wind direction and how to stay cool during the summer months.
GA4lJ TIL there was a literary subgenre in the 1850s dubbed "Anti-Tom literature" created in response to Harriet Beecher Stowe's anti-slavery novel Uncle Tom's Cabin. The books would attempt to justify slavery and paint blacks as being content in servitude.
mBgx TIL the panda’s gut isn’t suited to digesting bamboo and can only digest 17% of the bamboo it eats. Instead, it is more suited to eating meat, like other species of bears.
VvK4 TIL the Denver International Airport is guarded by a 32-foot-tall demon horse. “Blue Mustang” (or as locals like to call it, “Blucifer”) is thought to be cursed largely because the sculptor, Luis Jiménez, was killed when a 9000 pound piece of the sculpture fell on him during construction.
Y8VB TIL Novartis sued South Africa to prevent it from importing cheaper AIDS drugs