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TIL that Countess Magdalena "Nina" von Stauffenberg, wife of Colonel Claus von Stauffenberg (key player in the 20 July plot against Hitler in 1944) was a third cousin to the Duke of Edinburg, the late Prince Philip. She died in 2006.

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7DJX TIL that certain metals (including copper, brass, silver, and gold) are naturally antimicrobial. A brass doorknob will self-sterilize in about eight hours if left untouched.
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