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TIL that Thomas Edison invented a motorized “stencil-pen” which was directly adapted into the very first tattoo gun.

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via reddit.com

VBO8Q TIL “Don’t Mess with Texas” was created as part of a marketing campaign aimed at 16-24 yr old males to stop throwing their trash all over Texas.
X0ZnD TIL that summertime Atari Computer Camps were were located at colleges and school campuses. Young people between the ages of 10-18 could enroll and learn on Atari 400 and Atari 800 computers as well as take part in various sports, crafts, and activities and sleep in residence halls.
eJ6E TIL that Penn Jillette from Penn and Teller painted his finger nails red as a joke in response to his mother telling him him to get a manicure because people would be looking at his hands, but always keeps one finger nail painted red in memory of his mother.
P1NvJ TIL Luftwaffe pilot Erich Hartmann was the most prolific flying ace ever, shooting down 352 Allied planes during WWII. He had to crash land 16 times due to equipment failure or shrapnel from his own kills, but never once because of enemy fire.
adPy TIL: Before Mating, the Female Giraffe Will First Urinate in the Male’s Mouth