I associate the FORTRAN computer programming language with the 1980’s. It was already looking a bit long in the tooth when Michelle took a course on it at Univ of Minnesota in the mid 1990’s (and where I dipped my hand in it, because… well, Michelle and I did a lot of things together). It was still being used for business and scientific applications.
Apparently some guy has written a modern website controller in FORTRAN. So he can run his website. That’s interesting.