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TIL through years of natural selection due to epidemics in Europe, a percentage of people of European decent carry the gene CCR5. Of that population, some have a CCR5-32 Delta mutation which makes them immune to HIV.

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j6BMM TIL that the original Teenage Mutant Ninja Turtles didn't wear different colored masks, only red!
QK0L TIL that the United States, with less than 5 percent of the world’s population, buys more than 50 percent of its prescription drugs. And it buys them at prices designed to subsidize the rest of the industrial world, where the same drugs cost much less
LQybQ TIL that the heaviest production car in history was the ZIL-41047 limousine used in Russia. It weighed It weighed 7,846 lbs (3,550 kg), and used 75 mm. (3 in) armor-plated steel for protection in key areas. This was used by president Mikhail Gorbachev till 1991.
wLk1Y TIL if a service dog approaches you without it’s owner, the owner is down or in need of help.
wok0P TIL Shanghai's waterfront has 26 various buildings of different architectural styles including Gothic, Baroque, Romanesque, Classicism and the Renaissance built under British control. Asia's leading cosmopolitan and thriving financial center, all tenants on the Bund were purged in 1949