Bjarne Stroustrup was born on 30 December 1950. He was Danish national and known as Computer scientist, Engineer, Scientist,.
Agner Krarup Erlang was born on 01 January 1878. He was Danish national and known as Mathematician, Engineer, Statistician.
Valdemar Poulsen was born on 23 November 1869. He was Danish national and known as Engineer.
