431 (CDXXXI) ebile ngwaga wa go thoma ka Laboraro, ngwaga wa bobedi ngwagengsome wa 430s, ngwaga wa bomasometharo tee ngwagengkgolo wa Ngwagakgolo 5, le ngwaga wa bomakgolo nne masometharo tee ngwagengkete wa Ngwagakete 1.