490
| Ngwagakete: | Ngwagakete 1 |
|---|---|
| Mengwagakgolo: | Ngwagakgolo 4 – Ngwagakgolo 5 – Ngwagakgolo 6 |
| Mengwagasome: | 460s 470s 480s – 490s – 500s 510s 520s |
| Mengwaga: | 487 488 489 – 490 – 491 492 493 |
490 (CDXC) ebile ngwaga wa go thoma ka Sontaga, ngwaga wa pele ngwagengsome wa 490s, ngwaga wa bomasomesenyane ngwagengkgolo wa Ngwagakgolo 5, le ngwaga wa bomakgolo nne masomesenyane ngwagengkete wa Ngwagakete 1.