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TIL: You can theoretical cut up a ball into a number of finite parts and reassemble it into 2 identical balls through the Banach-Tarski Paradox

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0dvVN TIL of the HMS Royal George, the largest warship in the world at the time of her launch in 1756. Her sinking near Portsmouth killed more than 800 people, making it one of the most deadly maritime disasters in British territorial waters. Many who died were women and children, visiting family onboard.
Wx5X TIL that for one day in 1940 a section of a hospital in Ottawa, Canada became international territory so a Dutch Princess could be born a full Dutch citizen (a requirement to be a Dutch Princess). Every year the Netherlands sends Canada a gift of tulips to show their gratitude.
G7dQ TIL of Jerusalem Syndrome, when tourists visiting Jerusalem suddenly have religious delusions and begin believing that they are the next coming of Jesus.
GYpVQ TIL on the upper floors of the 2700-ft Burj Khalifa skyscraper, the sun is still seen for several minutes after it has set at ground level. Dubai clerics have ruled that residents above the 80th floor should wait 2 additional minutes to break their Ramadan fast, and those above the 150th, 3 minutes.
XEBkr TIL: Contact Tracing has been used to fight epidemics since 1854