Original: The Choral Society changed its name to Schola Cantorum in 1967, upon merging with the University Union Choir, and then to City of Dunedin Choir in 1993, the year it celebrated 130 years of existence.
Simplified: It changed its name to Schola Cantorum in 1967, after joining together with the University Union Choir, and then it changed its name to City of Dunedin Choir in 1993, the year it had existed for 130 years.