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TIL in 1987, an engineer used a new computer program “rwall” to send a message to his university server. Instead, the program broadcasted the message to every user on the internet—including the Pentagon.

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1aZXV TIL: A Russian man saved the world by ignoring the commands of a missile detection system. His gut instincts were correct. it was a false alarm. There were no nukes coming from the United States. It was some clouds that fooled the sensors.
ADVlw TIL that the USA has 12 cities/towns named after Amsterdam, 7 named after Madrid, 5 named after Milan, 5 named after Paris, 4 named after Venice, and 4 named after Vienna
Y44A TIL of the Ittan-Momen: a “roll of cotton” that, in Japanese folklore, becomes alive and self-aware once reaching 100 years old. It “flies through the air at night” and “attacks humans, often by wrapping around their faces to smother them.”
lbWN TIL That just under 7/8 of the land on Earth is on one half of the planet. Called “The Land Hemisphere” The other side of the Earth being “The Water Hemisphere”.
X0EZr TIL Cards used in the Jacquard loom led to computer technology.