Ngwagakete: Ngwagakete 1
Mengwagakgolo: Ngwagakgolo 6Ngwagakgolo 7Ngwagakgolo 8
Mengwagasome: 590s  600s  610s  – 620s –  630s  640s  650s
Mengwaga: 618 619 620621622 623 624

621 (DCXXI) ebile ngwaga wa go thoma ka Mošupologo, ngwaga wa bobedi ngwagengsome wa 620s, ngwaga wa bomasomepedi tee ngwagengkgolo wa Ngwagakgolo 7, le ngwaga wa bomakgolo tshela masomepedi tee ngwagengkete wa Ngwagakete 1.