Heligoland–Zanzibar Treaty between Britain and Germany
- When
- 1890
- Where
- Signing location not specified in passages; German Bight; Kenyan coast
- Episodes
- 3
The Heligoland–Zanzibar Treaty, signed on 1 July 1890, exchanged British-held Heligoland for German recognition of British authority in Zanzibar. Germany gained the Caprivi Strip and control over Dar es Salaam, while Britain secured the Wituland protectorate and vital East African railway access. This agreement resolved colonial tensions following the 1884 Berlin Conference, balancing naval interests in the North Sea with African territorial claims.
Episodes
- German Territorial Gains
Germany gained Heligoland, the Caprivi Strip, and control over Dar es Salaam, forming the core of German East Africa.
- British Territorial Gains
Britain secured the Wituland protectorate and vital East African railway access, while Germany recognized British authority in Zanzibar.
- Treaty Signing
The Heligoland–Zanzibar Treaty was signed on 1 July 1890 between Germany and the United Kingdom, exchanging colonial possessions.
Background and detail
Background. After the 1884 Berlin Conference, Germany had been losing out in the "Scramble for Africa". The German East Africa Company under Carl Peters had acquired a strip of land on the Tanganyikan coast, leading to the 1888 Abushiri Revolt, but had never controlled the islands of the Zanzibar sultanate. With construction of the Kiel Canal from 1887 onward, control of the German Bight had become essential to Emperor Wilhelm II's plans for expansion of the Imperial Navy. Beginning in 1886, Britain and Germany had also agreed to allocate parts of the Zanzibar sultanate for their own empires.
Terms. Germany received Heligoland, the Caprivi Strip, and a free hand in Dar es Salaam. In exchange, Germany recognized British authority in Zanzibar, handed over the Wituland protectorate, and agreed not to interfere with British actions regarding the Sultanate of Zanzibar. Britain also secured parts of East Africa vital for building a railway to Lake Victoria.
People involved
- Emperor Wilhelm II · mentioned in connection with naval expansion motives
- Carl Peters · background actor in the pre-treaty colonial situation (head of the German East Africa Company)
Sources
- Heligoland–Zanzibar Treaty Wikipedia, revision of 2026-10-01
- Zanzibar Wikipedia, revision of 2026-10-04
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.