March 14 is the official day for Pi Day derived from the common three-digit approximation for the number Pi, 3.14. It is usually celebrated at 1:59 pm (3.14159). Parties have been held by mathematics departments of various schools around the world. This is not to be confused with Pi Approximation Day[?] on July 22.
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February 4 - MacKinlay Kantor[?], historian (+ 1977)
February 5 - Walter Gross[?], cabaretist (+ 1989)
February 7 - Ernst Ginsberg[?], actor and film director ...