I learned FORTRAN in high school. It was the first high-level language I learned.
At university, the first CS class that every CS major had to take was a FORTRAN programming class. I was an EE major, but I took it anyway as I could see that's where the industry was headed. The work was done on a CDC 6400 mainframe using punched cards.
The second CS course, which I also took, used Pascal, which was a big improvement over FORTRAN, although even some of the CS majors just couldn't get their heads around the concept of pointers (they seemed natural to me).
After that, everything was in C, which is the language that I use to this day when working on microcontroller projects (as a hobby). My professional work mostly revolves around working with hardware description languages, primarily SystemVerilog, and the various tools used for simulation and verification.