What nationality was the inventor of the first vacuum pump?
Vacuum pump:  The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity. Otto von Guericke: Otto von Guericke (originally spelled "Gericke", ] ; November 20, 1602 – May 11, 1686 (Julian calendar); November 30, 1602 – May 21, 1686 (Gregorian calendar)) was a German scientist, inventor, and politician.
German