1457 (MCDLVII) ebile ngwaga wa go thoma ka Labone, ngwaga wa boseswai ngwagengsome wa 1450s, ngwaga wa bomasomehlano šupa ngwagengkgolo wa Ngwagakgolo 15, le ngwaga wa bomakgolo nne masomehlano šupa ngwagengkete wa Ngwagakete 2.