Richens Invents Semantic Networks for Machine Translation

In 1956 Richard H. Richens of the Cambridge Language Research Unit invented semantic nets for computing by creating semantic networks for machine translation of natural languages.

Richens, "General program for mechanical translation between any two languages via an algebraic interlingua [Abstract]" In: Report on Research: Cambridge Language Research Unit. Mechanical Translation 3 (2), November 1956; p. 37.

Richens, "Preprogramming for mechanical translation," Mechanical Translation 3 (1), July 1956, 20–25