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TIL Holding your breath too long hurts not because you are oxygen deprived, but because too much carbon dioxide has built up in your blood.

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e0abk TIL the dwarf actors in the 1987 film The Garbage Pail Kids Movie could only survive in their costumes for five to seven minutes before their oxygen depleted, so a paramedic with a stop watch was required on set in order to keep the takes quick, and the actors from asphyxiating.
boEj TIL that Celebrity Talent International (CTI) is an agency that represents huge stars and books all kinds of appearances for them. A lot of the appearance fees are listed on their website.
VMQ6m TIL that Thanksgiving was not actually a federal holiday in the United States until 1863, when it was declared so by Abraham Lincoln.
Ooe87 TIL: Wales can trace its throne in continual rulership back to the Romano-British, making it technically the last Roman rump state left in Europe.
dDYGB TIL Denny's was originally Danny's Donuts in Lakewood, CA. Three years and eight locations later, they became Danny's Coffee Shops. Three years after that, the name was changed to Denny's in order to avoid confusing them with another restaurant called Coffee Dan's.