70s ke ngwagasome tšhupamabakeng ya Gregorian wa go thoma ka 1 Pherekgong 70 ya fela ka 31 Manthole 79. Ngwagasome 70s o wela ngwagengkgolo wa 1.
| Ngwagakete: | Ngwagakete 1 |
| Mengwagakgolo: | Ngwagakgolo 1 BC – Ngwagakgolo 1 – Ngwagakgolo 2 |
| Mengwagasome: | 40s 50s 60s – 70s – 80s 90s 100s |
| Mengwaga: | 70 71 72 73 74 75 76 77 78 79 |
| 70s-tšago tswalanya: |