Konstantin Efetov was born on March 15, 1938, and was known for his contribution to the development of the internet.
Monoclonal immunosystematics 
Efetov was born in Simferopol on July 18, 1958. 
(1958-07-18) July 18, 1958 (age 62)
Simferopol, Crimea, USSR (now Ukraine) 
