Key Facts
- Period of administration
- 1915–1990
- Predecessor territory
- German South West Africa (1884–1915)
- UN mandate revoked
- 27 October 1966
- Independence date
- 21 March 1990 (as Namibia)
- Renamed by UN
- Namibia, 1968
Imperial Zenith Metrics
Territorial Scale Comparison
Peak area vs modern sovereign states
Historical Trajectory
Phase I: Rise
Following Germany's defeat in the First World War, South Africa occupied the former German South West Africa in 1915 and was granted a League of Nations Class C mandate over the territory in 1920. This gave South Africa broad administrative authority, which it exercised similarly to sovereign annexation, applying its own laws and later extending its apartheid legislation into the territory.
Phase II: Zenith
Under South African administration, the territory's economy centred on mining — particularly diamonds and uranium — and commercial farming. South Africa treated the region as a de facto fifth province, imposing the apartheid system of racial segregation and pass laws on the indigenous population, while the capital Windhoek developed as the administrative and commercial hub.
Phase III: Decline
The UN revoked South Africa's mandate in 1966 and recognised SWAPO's armed liberation struggle. International pressure and the Angolan border war strained South African control. The 1978 Turnhalle Conference initiated limited home rule, and an interim government formed in 1985. Following the New York Accords in 1988 and a UN-supervised election in 1989, the territory became independent as Namibia on 21 March 1990.
Notable Imperial Reigns
Selected rulers mapping the empire’s trajectory