Tech History Today – Apr. 16

In 1959 – The programming language LISP had its first public presentation. Created by John McCarthy, LISP offered programmers flexibility in organization.

In 1971 – Abhay Bhushan proposed FTP (File Transfer Protocol) in RFC 114.

In 1976 – The Helios-B deep-space probe made what was then the closest controlled approach to the Sun at 43 million km or within 0.3 AU.