This is the short version. I play/played several other game systems (including some fantasy systems, such as MERP) during various eras, usually post 1989.
Holmes - 1979 to 1981
B/X (BEMC) - 1981 - 1988
AD&D 1E - 1984-1990
AD&D 2E - 1989-1999 (While I got the books when they came out, we waited until MC2 was out so I had time to digest the rules before we started)
D&D 3E/3.5E - 2000 - 2010? (we played 3E until we switched to PF1; I didn't switch to 3.5 until about a year after it was out. We primarily played several non-D&D systems after 2008, until PF1)
D&D 4E - 2008 (three attempts, about 3 month long apiece)
PF1 - 2010? - 2014? (we started with the playtest and stopped a few months after 5E came out)
D&D 5E - 2014 - (we started with the Starter set and a couple months later started using the PHB/MM/DMG full rules)