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TIL Having an autistic sibling increases your chances of having autism by 6.9 times

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XE9er TIL in 1965 Timothy Leary was convicted of possession of Marijuana and sentenced to 30 years in prison and fined $30,000 (2020: $250,000)
WkQa4 TIL that the Count in Sesame Street does not count all the time to teach children numbers! In folklore, vampires had arithmomania, or an obsession with numbers. This derives from the old superstition that throwing poppy seeds on the ground stopped vampires because they had to count them all first.
BrbOr TIL that 1 in 3 middle aged men are affected by baldness on their lower legs. This pattern of hair loss is extremely common yet hardly studied. Leg crossing, trouser rubbing and friction have all been suggested as causes, but no study has demonstrated what the actual cause is.
Rlw7 TIL that indoor air pollution kills more people than AIDS and malaria combined.
oBVvL TIL There is an island which changes sovereignty every 6 months. Less than 7000 sq metres, in a river on the Spain-France border, Pheasant Island is ceremonially exchanged between the two countries every February and July, according to a peace treaty which was signed on the island in 1659