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TIL the Medici line died out in 1743 with the death of Anna Maria Luisa de' Medici.

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DKkr TIL each new US spy satellite under the “Key Hole” program is expected to cost more than the latest Nimitz-class aircraft carriers.
8l9K TIL Sony made a special black Playstation that would let you develop games and could only be purchased by mail order. It cost $750 in 1997 and today is very difficult to come by.
E11MX TIL that human fingers/toes getting wrinkly when in the bath/swimming is a actually NOT caused by water soaking into the skin. This effect does not happen if there is nerve damage in the finger, which means it is actually an involuntary autonomic nervous system response causing wrinkly fingers.
Wk1VX TIL that with our current fastest space vehicle it would take 81,000 years to reach the nearest star system. We have quite a ways to go before interstellar colonization outside of our solar system is possible.
7rkGX TIL that stress or abuse in childhood can rewrite your DNA causing reactions in adulthood that are out of line with reality. Further, the DNA changes can be passed on to children through a pregnant mother who is experiencing stress.