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wLR8W TIL learned about "Ether Frolics" A social gathering in the early 19th Century where partygoers would congregate to sniff ether. It was cheaper than alcohol and easier to come by than nitrous oxide, another favorite.
8ONX TIL that in 1787 a large shark was caught in the Thames river, and when the contents of its stomach was examined it included a watch, silver chain and seal that had belong to a British sailor who had been lost at sea, but was originally from Shoreditch.