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TIL According to the National Hot Dog and Sausage Council, hot dogs began being sold in packs of 10 to meet an ideal retail weight target per package, whereas hot dog buns are sold by 8 because baking trays normally can fit 8 rolls.

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6K8w TIL Cocaine use can be detected through chemicals left in your fingerprints.
WrkB TIL During the AIDS epidemic of the 1980s, education about the disease was limited for political reasons. Surgeon General C. Everett Koop ended up infuriating members of both parties after he ordered that every home in America be mailed a letter explaining what AIDS was and how to protect from it.
o5Kr TIL there is a Iron Pillar in Delhi that has avoided rusting for 1600 years. The pillar has been called a testament to the skill of ancient Indian blacksmiths".
9wYp6 TIL that the Creatonotos gangis moth spreads pheromones using long appendages called hair-pencils.
Lkkor TIL that World Rally Championship drivers are trained in first aid in the event that a spectator or driver is injured.