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TIL There is a school of thought that credits legendary Czech author Franz Kafka with the development of the civilian hard hat.

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xyl5 TIL George R.R. Martin writes all his novels in DOS using the ancient word processing program WordStar
M7Q7W TIL Singapore was the first country to introduce an electronic toll collection scheme to manage traffic congestion by the way of road pricing in 1975. It has since been introduced in other cities in the world such as in London and Stockholm and has been proposed for New York City and San Francisco.
Oopv1 TIL that in 1921, spiritualists Thomas Lynn Bradford and Ruth Doran decided to test whether it was possible to communicate with the dead. Bradford killed himself by sealing his apartment and turning on his gas stove, and planned to appear as a ghost to Doran after his death. He didn't.
j6GXR TIL that John Wilkes Booth was present at the hanging of John Brown.
xYj1 TIL naps are predominantly deep sleep and our body is wired for them.