1415 (MCDXV) ebile ngwaga wa go thoma ka Sontaga, ngwaga wa botshelela ngwagengsome wa 1410s, ngwaga wa bolesome hlano ngwagengkgolo wa Ngwagakgolo 15, le ngwaga wa bomakgolo nne lesome hlano ngwagengkete wa Ngwagakete 2.