Ngwagakete: Ngwagakete 2
Mengwagakgolo: Ngwagakgolo 19Ngwagakgolo 20Ngwagakgolo 21
Mengwagasome: 1940s  1950s  1960s  – 1970s –  1980s  1990s  2000s
Mengwaga: 1972 1973 197419751976 1977 1978

1975 (MCMLXXV) ebile ngwaga wa go thoma ka Laboraro, ngwaga wa botshelela ngwagengsome wa 1970s, ngwaga wa bomasomešupa hlano ngwagengkgolo wa Ngwagakgolo 20, le ngwaga wa bomakgolo senyane masomešupa hlano ngwagengkete wa Ngwagakete 2.