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TIL the home security system was invented in 1966 by New York nurse Marie Van Brittan Brown and her husband Albert, who was an electrician. They received the first patent for such an invention.

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LEOm TIL: a study showed that Harry Potter fans “tend be more open to diversity; politically tolerant; less authoritarian; less likely to support the use of deadly force or torture; more politically active; and are more likely to have a negative view of the Bush administration.”
yQJvw TIL Tom, from Tom & Jerry was actually called Jasper in the shows debut.. his name as Tom, or Thomas, was solidified i the next episode "The midnight snack". Additionally Jerry was called Jinx in the first episode.
bJEa TIL Bacteria can absorb genetic material from dead bacteria and integrate them into their own genome. So if a bacterium eats the corpse of one which has adapted to colder temperatures, it will gain that resistance to cold as well.
5V5N9 TIL Jay DeFeo created a work called "The Rose" that started at 9 x 7 feet. She would apply thick paint and chisel it away. It eventually was 11 feet tall and weighed over a ton. It was sealed in storage until conservators created a backing strong enough to support the heavy paint.
nWVeY TIL that the last warlord of China lived until 2001. He fought both Japan and Chinese Communists; he later converted to Christianity and moved to Hawaii, where he died at age 100. Some of his children still live in the U.S. and are now presumably Americans.