Ngwagakete: Ngwagakete 1
Mengwagakgolo: Ngwagakgolo 4Ngwagakgolo 5Ngwagakgolo 6
Mengwagasome: 390s  400s  410s  – 420s –  430s  440s  450s
Mengwaga: 420 421 422423424 425 426

423 (CDXXIII) ebile ngwaga wa go thoma ka Sontaga, ngwaga wa bone ngwagengsome wa 420s, ngwaga wa bomasomepedi tharo ngwagengkgolo wa Ngwagakgolo 5, le ngwaga wa bomakgolo nne masomepedi tharo ngwagengkete wa Ngwagakete 1.