20
| Ngwagakete: | Ngwagakete 1 |
|---|---|
| Mengwagakgolo: | Ngwagakgolo 1 BC – Ngwagakgolo 1 – Ngwagakgolo 2 |
| Mengwagasome: | 0s BC 0s 10s – 20s – 30s 40s 50s |
| Mengwaga: | 17 18 19 – 20 – 21 22 23 |
20 (XX) ebile ngwagamolele wa go thoma ka Laboraro, ngwaga wa pele ngwagengsome wa 20s, ngwaga wa bomasomepedi ngwagengkgolo wa Ngwagakgolo 1, le ngwagengkete wa Ngwagakete 1.