Ngwagakete: Ngwagakete 2
Mengwagakgolo: Ngwagakgolo 19Ngwagakgolo 20Ngwagakgolo 21
Mengwagasome: 1940s  1950s  1960s  – 1970s –  1980s  1990s  2000s
Mengwaga: 1975 1976 197719781979 1980 1981

1978 (MCMLXXVIII) ebile ngwaga wa go thoma ka Sontaga, ngwaga wa bosenyane ngwagengsome wa 1970s, ngwaga wa bomasomešupa seswai ngwagengkgolo wa Ngwagakgolo 20, le ngwaga wa bomakgolo senyane masomešupa seswai ngwagengkete wa Ngwagakete 2.