The Berlin Conference of 1884–85, also known as the Congo Conference (German: Kongokonferenz) or West Africa Conference (Westafrika-Konferenz), regulated European colonization and trade in Africa during the New Imperialism period, and coincided with Germany's sudden emergence as an imperial power. Called for by Portugal and organized by Otto von Bismarck, first Chancellor of Germany, its outcome, the General Act of the Berlin Conference, can be seen as the formalization of the Scramble for Africa. The conference ushered in a period of heightened colonial activity by European powers, which eliminated or overrode most existing forms of African autonomy and self-governance.
Before the conference, European diplomacy treated African indigenous people in the same manner as the New World natives, forming trading relationships with the indigenous chiefs. By the mid-19th century, Europeans considered Africa to be disputed territory ripe for exploration, trade, and settlement by their colonists. With the exception of trading posts along the coasts, the continent was essentially ignored.
In 1876, King Leopold II of Belgium, who had previously founded the International African Society in 1876, invited Henry Morton Stanley to join him in researching and 'civilising' the continent. In 1878, the International Congo Society was also formed, with more economic goals, but still closely related to the former society. Léopold secretly bought off the foreign investors in the Congo Society, which was turned to imperialistic goals, with the African Society serving primarily as a philanthropic front.