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TIL That it isn’t a lack of Oxygen that causes mammals to breath, but a build up of Carbon Dioxide.

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4XL76 TIL the waterbed was invented in 1833 by a Scottish Physician. He intentionally did not patent it so that anyone could design their own variation of the waterbed and it could help as many people as it could who were suffering from bed sores.
woo46 TIL the author J.D. Salinger was a Sergeant in the US Fourth Infantry Division in WWII. He landed in the second wave at Utah Beach on D-Day, carrying a draft of "The Catcher in the Rye" with him there and through several battles, and at the liberation of the Buchenwald Concentration Camp.
6aGJ TIL at the 2:58 mark in Hey Jude, you can hear Paul McCartney say “fucking hell” after making a mistake on the piano. The band thought it was so funny that they decided to keep it in the song.
70ZZ TIL The Headquarters of Campbell Soup has been in Camden, New Jersey since 1869. It has since decided to remain in the city despite the economic decline of the neighborhood so it may be a positive influence in its future revitalization
epBK5 TIL that Chief Petalesharro, a Pawnee from Nebraska, was received in full regalia by President Monroe at the White House in 1821. The Chief had become a celebrity after rescuing a woman his tribe was attempting to burn at the stake. He rescued her from the fire and rode away with her on his horse.