538 (DXXXVIII) ebile ngwaga wa go thoma ka Laboraro, ngwaga wa bosenyane ngwagengsome wa 530s, ngwaga wa bomasometharo seswai ngwagengkgolo wa Ngwagakgolo 6, le ngwaga wa bomakgolo hlano masometharo seswai ngwagengkete wa Ngwagakete 1.