› added 5 years ago

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TIL Xerox and Cannon created the Machine Identification Code. A digital watermark which certain color laser printers and copiers leave on every single printed page, allowing identification of the device with which a document was printed and giving clues to the originator

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a867b TIL that China's national anthem is taken from a 1935 film called Children of Troubled Times.
Q54L TIL on Wall Street at noon in 1920 a horse drawn carriage loaded with explosive went off killing 38 people and injuring hundreds. Never solved it was expected to have been Italian Anarchists
b61bp TIL that Antarctica is the driest continent on Earth, with some parts receiving less precipitation than the Sahara Desert.
woKJP TIL about the 2008 Andersen Air Force Base B-2 accident, the most expensive plane crash in history ($1.4 billion)
k48e TIL Great Britain has invaded 90% of the world’s countries