History of role-playing games
The history of role-playing games began when disparate traditions of historical reenactment, improvisational theatre, and parlour games combined with the rulesets of fantasy wargames in the 1970s to give rise to tabletop role-playing games (TTRPGs). Multiple TTRPGs were produced between the 1970s and early 1990s.
Source: Wikipedia — History of role-playing games (CC BY-SA 4.0)