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TIL that J Edgar Hoover’s largest investigative file was of Eleanor Roosevelt. He believed her civil rights and humanitarian work was too suspicious to not be a communist

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a87JJ TIL Arachnoids are large spiderweb-like structures of unknown origin that have been found only on the surface of Venus and can span 200 km
QJp66 TIL: While there is aphantasia, the inability to produce mental images, there is also the even lesser known hyperphantasia, the ability to produce extremely vivid mental images.
Jpek TIL: That Kang and Kodos (Aliens in The Simpsons) are often referred to as Brother and Sister, yet sometimes they are referred to as both sisters.
woVY8 TIL that the Romans published a daily gazette called the Acta Diurna. It contained major events, births and deaths. It was either inscribed in stone or metal or painted in black on white walls called Albums. This practice was initiated by Julius Caesar and lasted from 59 BC to 222 AD.
p8JL8 TIL that in 2005, scientists found a 20cm long stone penis, in a German cave. It is about 28,000 years old and is believed to have been used as a dildo.