Comments and suggested edits welcome. This is super rough.
General Timeline
1940s/1950s Homo Ludens
1950s/1960s war games post-WW2/Korean War
~1970 ISAGA, NASAGA, S&G
1970s New Games Movement and The Games Preserve, alongside rise of hippies and Woodstock culture
1980s “Me” generation kills NGM while their kids play video games and newfangled RPGs
1990s Gen X and later video gamers start going to college
2000s rise of game studies, DiGRA, GLS, G4C, new games journalism, rise of designer board games
2010s collapse of academia, convergence (and diversification) of games scholar fields, gamergate, inclusion and representation in games, gamification and its backlash
Continue reading A VERY brief timeline of games scholarship [needs edits!]