 Tomlinson is regarded as having sent the first e-mail on a network and for making the "@" sign the mainstream of e-mail communications.1972 C (programming language)

C is a general-purpose computer programming language originally invented in 1972 by Dennis Ritchie at the Bell Telephone Laboratories in order to implement the Unix operating system.Although C was designed for writing architecturally independent system software, it is also widely used for developing application software.