mAriuZ writes "From Jim Starkey: "September 4th is the 20th anniversary of what is now Firebird. I quit my job at DEC in August, took a three day end-of-summer holiday, and began work on September 4, 1984 in my new career as a software entrepreneur. As best as I can reconstruct, the first two files were cpre.c and cpre.h (C preprocessor), later changed to gpre.c and gpre.h. The files were created on a loaner DEC Pro/350, a PDP-11 personal computer that went exactly nowhere, running XENIX. Gpre was my first C program, XENIX was my first experience with Unix, and the Pro/350 was my very last (but not lamented) experience with PDP-11s.""