Ivan Bubnov

Russian mathematician.

Born January 18th, 1872 in Nizhny Novgorod.

Died March 13th, 1919 at 47 years old in Saint Petersburg (typhoid fever).

Occupations
engineer, major general, marine engineer, mathematician, submariner
Wikipedia
Ivan_Bubnov

While I thought that I was learning how to live, I have been learning how to die. Leonardo da Vinci