654 (DCLIV) ebile ngwaga wa go thoma ka Sontaga, ngwaga wa bohlano ngwagengsome wa 650s, ngwaga wa bomasomehlano nne ngwagengkgolo wa Ngwagakgolo 7, le ngwaga wa bomakgolo tshela masomehlano nne ngwagengkete wa Ngwagakete 1.