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319

TIL Rats laugh when tickled

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oR5Lr TIL in the 1960s, Swiss rivers were filthy and unsafe. A 1963 typhoid outbreak in Zermatt killed 3 and sickened over 450. A 1967 initiative led to a 1971 law on wastewater treatment. By 2005, 97% had sewage access.
jjJj TIL A statue of Queen Victoria was moved one inch on its plinth by a German bomb in 1940. It was otherwise unharmed.
DQryY TIL the first human created device to break the sound barrier was the bullwhip, as the tip creates a sharp crack which is a sonic boom.
m1aNY TIL that Vincent van Gogh painted his iconic Irises while staying at an “insane” asylum, inspired by the vibrant flowers he observed in the courtyard from his window.
NX8QN TIL that Marge Simpson was featured in Playboy November 2009