African Colonization by 1870: Only 10% Under European Control

By 1870, approximately 10% of Africa's land area was under formal European colonial rule. The vast interior remained governed by African polities—kingdoms, empires, sultanates, and stateless societies—engaged in long-distance trade and diplomacy on their own terms.

Where Europeans Held Sway (Pre-1870)

• Coastal enclaves: Portuguese (Angola, Mozambique), British (Cape Colony, Gold Coast, Lagos), French (Saint-Louis, Gorée, Assinie), Dutch (until 1806 Cape, then British).
• Algeria: French conquest began 1830; by 1870, northern Algeria was a settler colony.
• Southern Africa: British Cape Colony expanded eastward (Xhosa wars); Boer republics (Transvaal, Orange Free State) independent.

The Scramble Accelerates (1870–1914)

The 1884–85 Berlin Conference formalized the "rules" for partition. By 1914, ~90% of Africa was under European control—only Liberia and Ethiopia (briefly occupied 1936–41) remained independent.

Drivers of the Late Surge

• Industrial demand for raw materials (rubber, palm oil, minerals)
• Steamship/railway/telegraph technology enabling interior penetration
• Medical advances (quinine prophylaxis against malaria)
• Nationalist rivalry and strategic pre-emption

The 1870 baseline underscores how rapidly the "Scramble for Africa" transformed the continent in a single generation.