Leon Theremin, "Russian/Soviet inventor, most famous for his invention of the theremin, one of the first electronic musical instruments", was born on August 28, 1896 (d. 1993). #LeonTheremin
(https://en.wikipedia.org/wiki/Leon_Theremin)
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* Wikipedia now has Aug. 27 [O.S. Aug. 15], 1896 as a birth date for Leon Theremin.
O.S. = Old Style, indicating a dating system before a calendar change, in this case the change from the Julian calendar to the Gregorian calendar, I think.