1973 (MCMLXXIII) ebile ngwaga wa go thoma ka Mošupologo, ngwaga wa bone ngwagengsome wa 1970s, ngwaga wa bomasomešupa tharo ngwagengkgolo wa Ngwagakgolo 20, le ngwaga wa bomakgolo senyane masomešupa tharo ngwagengkete wa Ngwagakete 2.