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TIL that the traditional way of proposing to someone in Japan is about miso soup

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OGorX TIL Union General Philip Kearny devised the first unit insignia patches used in the U.S. Army in 1862, after mistakenly giving orders to soldiers not under his command. Afterward, his men wore a patch of red cloth to identify themselves as members of his unit. Other units quickly adopted the idea.
mxEVE TIL Napoleon's great-nephew Charles founded the FBI
wLvAo TIL the worlds smallest playable guitar is 10 microns long (about the size of a red blood cell). It has six strings each about 100 atoms wide and is played by aiming lasers at the strings. Its tone is about 130,000 times higher than a regular guitar supposedly the highest pitch ever recorded.
Rda8 TIL that there are three power grids in America. One for the West one for the East and one for…Texas.
696K8 TIL a 32 year long study found obesity spread through social circles, and that a person's chances of becoming obese increased by 57% if he or she had a friend who became obese