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TIL about Juneteenth: an American holiday that commemorates the June 19, 1865 announcement of the emancipation of enslaved African Americans throughout the former Confederate States of America.

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via reddit.com

GdQQ TIL that in New York subways, booth attendants would sprinkle chili powder in coin slots to stop people from “coin sucking”
R7nka TIL that astronauts in the 1970s raised the surface temperature of the moon by simply walking on it, exposing the darker soil from under the lighter soil, ultimately causing the moon to absorb more of the sun’s energy.
W7xDB TIL Michael Jordan briefly took up playing professional baseball after leaving the NBA
Yyd7 TIL Spock’s “Live Long and Prosper” Vulcan hand gesture will soon be available to use as an emoji, just like ?, ✌, and ?. It was officially added to Unicode last year.
b9XrN TIL that the Greenland shark has extremely toxic meat. If the meat is eaten without being treated, the effects on the body are very similar to drunkenness.