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207

TIL frozen helium is a solid that behaves like a superfluid

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wLZyM TIL wearing a blindfold for at least 12 hours can induce visual hallucinations, including complex scenery and frightening entities.
xVDm1 TIL that Sperm whales regularly hunt and kill giant squid, resulting in epic battles between the two giant animals. We know this (despite the fact it has never been seen or filmed) due to scars on the heads of sperm whales
Br7De TIL that in 1777 Thomas Jefferson drafted the Virginia Statue for Religious Freedom. When it was enacted, religious freedom was guaranteed to all persons, including Muslims, Jews, and Hindus. In addition it also was one of three things listed on Jefferson's grave.
KYrNB TIL a 1553 world map published by Petrus Apianus called North America "Baccalearum", meaning "realm of the Cod fish", in reference to the abundance of cod fish on the East Coast.
5YXNR TIL that in 1908 Germany issued "transvestite certificates" with the support of scientists and psychologists. The certificates allowed people to legally wear clothing that contradicted their assigned biological sex.