FORTRAN, my very first college programming class. Afterwards I went on to use EasyTrieve which is basically COBOL without a compiler, NOMAD, some Assembler, and DB2.
Wow, another FReeper who used NOMAD! That product kept me employed for more years than I care to count. Your career looks remarkably like mine, although I did some COBOL on a mini-computer instead of EasyTrieve before the NOMAD vendor tapped me on the shoulder.