Ngwagakete: Ngwagakete 2
Mengwagakgolo: Ngwagakgolo 19Ngwagakgolo 20Ngwagakgolo 21
Mengwagasome: 1960s  1970s  1980s  – 1990s –  2000s  2010s  2020s
Mengwaga: 1987 1988 198919901991 1992 1993

1990 (MCMXC) ebile ngwaga wa go thoma ka Mošupologo, ngwaga wa pele ngwagengsome wa 1990s, ngwaga wa bomasomesenyane ngwagengkgolo wa Ngwagakgolo 20, le ngwaga wa bomakgolo senyane masomesenyane ngwagengkete wa Ngwagakete 2.