Which 1884 conference established the rules that accelerated the European partition of Africa?

The Berlin Conference of 1884–1885 established diplomatic rules that accelerated the European partition of Africa.

German Chancellor Otto von Bismarck hosted the conference in Berlin from November 1884 to February 1885. Representatives of European powers, the United States, and the Ottoman Empire discussed trade, navigation, and territorial claims, while no independent African state was represented as a negotiating power.

The General Act of Berlin recognized principles including freedom of trade in the Congo Basin and freedom of navigation on the Congo and Niger rivers. It also introduced “effective occupation” as a basis for European powers to support territorial claims through actual administration rather than simply announcing them.

The conference did not draw every later African border, and it did not literally divide the continent in a single meeting. European governments continued conquest and boundary-making afterward. Nevertheless, the agreement helped formalize conditions for intensified colonial expansion, with lasting political, economic, and social consequences.