644
| Ngwagakete: | Ngwagakete 1 |
|---|---|
| Mengwagakgolo: | Ngwagakgolo 6 – Ngwagakgolo 7 – Ngwagakgolo 8 |
| Mengwagasome: | 610s 620s 630s – 640s – 650s 660s 670s |
| Mengwaga: | 641 642 643 – 644 – 645 646 647 |
644 (DCXLIV) ebile ngwagamolele wa go thoma ka Mošupologo, ngwaga wa bohlano ngwagengsome wa 640s, ngwaga wa bomasomenne nne ngwagengkgolo wa Ngwagakgolo 7, le ngwaga wa bomakgolo tshela masomenne nne ngwagengkete wa Ngwagakete 1.