975 (CMLXXV) ebile ngwaga wa go thoma ka Sontaga, ngwaga wa botshelela ngwagengsome wa 970s, ngwaga wa bomasomešupa hlano ngwagengkgolo wa Ngwagakgolo 10, le ngwaga wa bomakgolo senyane masomešupa hlano ngwagengkete wa Ngwagakete 1.