Ngwagakete: Ngwagakete 2
Mengwagakgolo: Ngwagakgolo 14Ngwagakgolo 15Ngwagakgolo 16
Mengwagasome: 1400s  1410s  1420s  – 1430s –  1440s  1450s  1460s
Mengwaga: 1428 1429 143014311432 1433 1434

1431 (MCDXXXI) ebile ngwaga wa go thoma ka Mokibelo, ngwaga wa bobedi ngwagengsome wa 1430s, ngwaga wa bomasometharo tee ngwagengkgolo wa Ngwagakgolo 15, le ngwaga wa bomakgolo nne masometharo tee ngwagengkete wa Ngwagakete 2.