June 21st, 1912

Kazimierz Leski, Polish engineer, fighter pilot and officer of the Home Army s intelligence and counter-intelligence (died in 2000) born on June 21, 1912.

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Events around June 21, 1912

June 23rd, 1912

Birth

Alan Turing, English mathematician, often considered to be the father of modern computer science (died in 1954)