1540s
1540s ke ngwagasome tšhupamabakeng ya Gregorian wa go thoma ka 1 Pherekgong 1540 ya fela ka 31 Manthole 1549. Ngwagasome 1540s o wela ngwagengkgolo wa 16.
| Ngwagakete: | Ngwagakete 2 |
| Mengwagakgolo: | Ngwagakgolo 15 – Ngwagakgolo 16 – Ngwagakgolo 17 |
| Mengwagasome: | 1510s 1520s 1530s – 1540s – 1550s 1560s 1570s |
| Mengwaga: | 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 |
| 1540s-tšago tswalanya: |