S. R. Ranganathan

Indian mathematician and librarian (1892–1972).

Born August 9th, 1892 in Sirkazhi. [ref]

Died September 27th, 1972 at 80 years old in Bengaluru. [ref]

Occupations
librarian, mathematician, university teacher, writer
Wikipedia

Man always thinks about the past before he dies, as if he were frantically searching for proof that he truly lived. Jet Black