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TIL The Privy Council of Elizabeth I of England marked letters that needed to be delivered quickly with a rough drawing of a gallows on the address panel. Sometimes the drawing included a body hanging from the gallows.

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vPZaj TIL Dan Aykroyd, featured Ghostbusters cast member, truly believes in ghosts.
LklZp TIL that in 1958 the Soviets reached one of the most remote places in Antarctica where they built a cabin. When they left they placed a bust of Lenin on top of the chimney facing in the direction of Moscow, which today is now the only thing standing above the snow
G9Bj TIL The SR-71 Blackbird, the fastest plane ever built, would go so fast its outside temperature would reach 572 F (300C). It had to be built with components that could grow as they heated. Because of this, the jet would leak fuel until it got hot.
ep40n TIL that the US bombing in the Vietnam War was roughly 100 times the combined impact of the Hiroshima and Nagasaki atomic bombs
9wrkB TIL that Norfolk Southern (rail freight company) partnered with other organizations to build and operate an entirely battery powered freight locomotive back in 2007