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TIL about Graham's number. This is a finite number so large that you couldn't write it out even if the numbers you used were subatomic in size and you used the whole observable universe as a canvas. But we know it ends in a seven.

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6E0nX TIL the Austrian Fatherland Front, while the fascist organ of a one-party state from 1934-38, opposed the Nazi Party, and the dislike was mutual. Austrofascists not only accommodated Jewish supporters and paramilitary wings, but also rejected unification with Germany and emphasized Catholic theology
Z8alB TIL that blood from horseshoe crabs is harvested every year and is the single best way to test for bacterial toxins in the manufacture of any medical substance or device put into the human body.
jXMj TIL 29 bars in NJ were caught serving things like rubbing alcohol + food coloring as scotch and dirty water as liquor
WkRD4 TIL It is believed that Van Gogh only sold one painting in his lifetime. The remainder were sold and became famous after his death.
kOb41 TIL the tetris theme song was based off a russian folk song.