1491 (MCDXCI) ebile ngwaga wa go thoma ka Labone, ngwaga wa bobedi ngwagengsome wa 1490s, ngwaga wa bomasomesenyane tee ngwagengkgolo wa Ngwagakgolo 15, le ngwaga wa bomakgolo nne masomesenyane tee ngwagengkete wa Ngwagakete 2.