490s
490s ke ngwagasome tšhupamabakeng ya Gregorian wa go thoma ka 1 Pherekgong 490 ya fela ka 31 Manthole 499. Ngwagasome 490s o wela ngwagengkgolo wa 5.
| Ngwagakete: | Ngwagakete 1 |
| Mengwagakgolo: | Ngwagakgolo 4 – Ngwagakgolo 5 – Ngwagakgolo 6 |
| Mengwagasome: | 460s 470s 480s – 490s – 500s 510s 520s |
| Mengwaga: | 490 491 492 493 494 495 496 497 498 499 |
| 490s-tšago tswalanya: |