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TIL In March 1942 Life Magazine published 6 maps showing possible German/Japanese invasion plans into the US.

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mOnE TIL free, open-source tool called Reaver exploits a security hole in wireless routers and can crack most routers’ current passwords with relative ease.
kvk4 TIL That “The sixth sick sheik’s sixth sheep’s sick” is listed by the Guinness Book of Records as the hardest tongue twister in the world.
0wBeA TIL in 1900 the flow of the Chicago River was permanently reversed in order to prevent sewage from flowing into Lake Michigan
eDx5 TIL the Pledge of Allegiance was originally conceived by a Christian Socialist, and was then adopted by a flag company as a marketing scheme to sell flags to schools.
9erX TIL one-third of Americans live paycheck to paycheck.