My first real programming income came from QuickBasic 4, at age 16. I had dabbled in GW-Basic up until that time, but an adult mentor introduced me to the concept of procedural program with functions and subroutines. In other words, no more line numbers, and no more Gotos and Gosubs. Also, real executables. No more interpreted code. It was one of those lightbulb moments in my life.
I still have my original QuickBasic 4.5 manuals. I just can't throw them away.
Very cool to see a project like this.