340s
340s ke ngwagasome tšhupamabakeng ya Gregorian wa go thoma ka 1 Pherekgong 340 ya fela ka 31 Manthole 349. Ngwagasome 340s o wela ngwagengkgolo wa 4.
| Ngwagakete: | Ngwagakete 1 |
| Mengwagakgolo: | Ngwagakgolo 3 – Ngwagakgolo 4 – Ngwagakgolo 5 |
| Mengwagasome: | 310s 320s 330s – 340s – 350s 360s 370s |
| Mengwaga: | 340 341 342 343 344 345 346 347 348 349 |
| 340s-tšago tswalanya: |