github.com/e-n-f/if-then-else/blob/master/if-then-else.md The 'else' keyword is probably a literal translation from German (2020)
Traces how if-then-else evolved from early computers through Fortran, Flow-Matic and the Algol proposals. "Else" first appears in the 1958 German Algol proposal, probably as a hasty translation, and Klaus Samelson folded it into the standard conditional in 1959.
