977 (CMLXXVII) ebile ngwaga wa go thoma ka Laboraro, ngwaga wa boseswai ngwagengsome wa 970s, ngwaga wa bomasomešupa šupa ngwagengkgolo wa Ngwagakgolo 10, le ngwaga wa bomakgolo senyane masomešupa šupa ngwagengkete wa Ngwagakete 1.