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TIL on August 4, 1922, phone service across the United States and Canada was suspended for one minute to honor Alexander Graham Bell's funeral with a moment of silence.

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dDXPj TIL in the 1800s the USDA gave farmers an herbicide to combat ragwort, a weed toxic to horses and cows. They'd spray sodium chlorate but get some on their pants. The dried sodium chlorate was high highly flammable leading to an epidemic of EXPLODING PANTS.
QNn8X TIL that snakes are only legless due to a lack of a certain gene.
GAVQ5 TIL teflon is the only substance geckos cannot stick to.
loAP1 TIL The British army breaks step when crossing bridges. This is because in 1831 a suspension bridge collapsed from all the soldiers marching in unison.
b94Rj TIL about Project Iceworm, a proposed 52,000 square mile large nuclear missile complex. By the time of its evacuation, it’s total length was 1.9 miles, and contained a hospital, a shop, a theater and a church.