Ngwagakete: Ngwagakete 2
Mengwagakgolo: Ngwagakgolo 14Ngwagakgolo 15Ngwagakgolo 16
Mengwagasome: 1390s  1400s  1410s  – 1420s –  1430s  1440s  1450s
Mengwaga: 1420 1421 142214231424 1425 1426

1423 (MCDXXIII) ebile ngwaga wa go thoma ka Laboraro, ngwaga wa bone ngwagengsome wa 1420s, ngwaga wa bomasomepedi tharo ngwagengkgolo wa Ngwagakgolo 15, le ngwaga wa bomakgolo nne masomepedi tharo ngwagengkete wa Ngwagakete 2.