Today is FORTRAN’s 70th birthday; its reference manual “appeared in a glossy cover, handsomely printed, with the date October 15, 1956.” https://softwarepreservation.computerhistory.org/FORTRAN/paper/p25-backus.pdf

(The actual software wasn’t released till the following year)

No longer fashionable but still, one of computer programming’s biggest success stories. I tip my hat.