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TIL powdered wigs became popular to hide syphilis symptoms

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awQEJ TIL In 2018 the WHO classified ageing as a disease
0QRA TIL When a born deaf person thinks, they feel themselves signing in their head
v1GMR TIL about the Still Face Experiment, where infants showed they can experience great distress when they are not smiled at and responded to.
xVmV1 TIL the average wind speed in Denmark is 7.6 metres per second, making it the world’s largest wind turbine exporter.
rgVW TIL that the once-thought useless human appendix has evolved at least 29 times, and been lost a maximum of 12 times–but evolution keeps bringing it back, possibly due to it having an important role in immune function.