Which 1884–1885 conference formalized European rules for colonizing and trading in Africa?

The Berlin Conference formalized European rules for colonizing and trading in Africa from 1884 to 1885.

The conference met in Berlin from November 1884 to February 1885 at the invitation of German Chancellor Otto von Bismarck. Representatives of European powers, the United States, and the Ottoman Empire attended. No African government was represented, a fact that reflects the unequal and imperial nature of the negotiations.

The resulting General Act addressed trade in the Congo Basin, navigation on the Congo and Niger rivers, and the principle of “effective occupation.” That principle required a European power claiming territory to establish enough authority there to make its claim recognized by other powers. It encouraged a rapid acceleration of European territorial expansion.

The conference did not literally draw every modern African border, and it did not divide the continent in a single meeting. However, its rules helped structure the later “Scramble for Africa,” whose boundaries often ignored existing political, cultural, and linguistic communities.