deaths
Arthur Scherbius, German electrical engineer, invented the Enigma machine (born 1878)
Related Wikipedia articles
Arthur Scherbius
German electrical engineer (1878–1929)
Arthur Scherbius was a German electrical engineer who invented the mechanical cipher Enigma machine. He patented the invention and later sold the machine under the brand name Enigma.Source: Wikipedia (CC BY-SA)
Enigma machine
German cipher machine
The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. It was employed extensively by Nazi Germany during World War II, in all branches of the German military. The Enigma machine…Source: Wikipedia (CC BY-SA)
May 13
Day of the year
May 13 is the 133rd day of the year in the Gregorian calendar; 232 days remain until the end of the year.Source: Wikipedia (CC BY-SA)