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TIL that the world's oldest still-functioning light bulb is purported to be the Centennial Light in Livermore, California. Maintained by the Livermore-Pleasanton Fire Dept, the bulb was installed in 1901 and has only been turned off a handful of times.

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j61pE TIL spaces between words in documents first appeared in Irish and Anglo-Saxon Bibles in the seventh century. Paleographers today identify the extinction of 'scriptio continua' as a critical factor in augmenting the widespread absorption of knowledge in the Pre-Modern Era.
7r0pL TIL Danny Trejo did the voice of Raul, an Irradiated Ghoul, in Fallout: New Vegas.
Vlnk TIL that a there has been a book written from the perspective of a successful sociopath/psychopath about the intricacies of the life of someone with this condition called “Confessions of a Sociopath: A Life Spent Hiding in Plain Sight”. The book, for obvious reasons, was written under a pseudonym.
690Mw TIL Neptune is not blue in colour, instead it's pale greenish-blue, as is Uranus. The original photos of Neptune taken by Voyager 2 in 1980s had been enhanced to highlight it's atmospheric features. Over time the captions of this changes were left out and blue became the defining colour of Neptune.
wo5AJ TIL that a pair of man-made structures which are older than the pyramids, one of which has been dated to be the among the oldest known human structures on earth, are located on the LSU campus and were used for tailgate parties as recently as 2010.