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Wilhelm Schickard

Wilhelm Schickard
Wilhelm Schickard, German astronomer and mathematician (d. 1635)

Wilhelm Schickard was a German professor of Hebrew and astronomy who became famous in the second part of the 20th century after Franz Hammer, a biographer of Johannes Kepler, claimed that the drawings of a calculating clock, predating the public release of Pascal's calculator by twenty years, had been discovered in two unknown letters written by Schickard to Johannes Kepler in 1623 and 1624.

22 April 1592

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Born on the same birth day (22 April): Adam Raphael • Charlotte Rae • Elizabeth of York, Duchess of Suffolk • Eve Muirhead • Georg Lurich • Harold Jeffreys • Henry Fielding • Jeff Hostetler • Jeff Minter • Pierre Hétu • Sherri Shepherd • Spyros Markezinis • Vernon Johns • William Jay Smith • Yehudi Menuhin

Born in the same month (April 1592): Francesco Maria Brancaccio • John Eliot (statesman)