Ngwagakete: Ngwagakete 2
Mengwagakgolo: Ngwagakgolo 19Ngwagakgolo 20Ngwagakgolo 21
Mengwagasome: 1940s  1950s  1960s  – 1970s –  1980s  1990s  2000s
Mengwaga: 1974 1975 197619771978 1979 1980

1977 (MCMLXXVII) ebile ngwaga wa go thoma ka Mokibelo, ngwaga wa boseswai ngwagengsome wa 1970s, ngwaga wa bomasomešupa šupa ngwagengkgolo wa Ngwagakgolo 20, le ngwaga wa bomakgolo senyane masomešupa šupa ngwagengkete wa Ngwagakete 2.