"Nine in a row" is a topic which has dominated football in Scotland at club level since the 1970s. The term refers to one club winning the national league championship nine times in a row, a mark which was first set by Celtic between the 1965–66 and 1973–74 seasons, during which they also became European champions in 1967. Their run was eventually stopped by local rivals Rangers, who later received significant financial investment and matched the achievement between 1988–89 and 1996–97 – Celtic were the team to win the next title and prevent their record being broken. After the two Glasgow clubs, known collectively as the Old Firm due to their longstanding domination of Scottish football and the mutual economic benefits of this rivalry, exchanged the trophy regularly for 14 seasons (the sa