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X06kQ TIL in 1900 three lighthouse keepers vanished without a trace from a lighthouse on a Scottish island
M7gKA TIL after US President Wilson had a stroke in 1919, his wife Edith Wilson limited his access to just his doctor and few close associates, and acted as the president's proxy and effectively ran the White House, and by extension the country, by extolling access to the president.
78PVM TIL that in 1969, the technology did not exist to fake the moon landing