Leopold ii convince the other nations to allow him control of the congo because he was involved in humanitarian and philanthropic work and would not tax trade.
Leopold was able to take control of the area by persuading other European nations to join him in his humanitarian and philanthropic endeavors and refrain from levying trade taxes at the Berlin Conference on Africa. He was able to assert his ownership over the majority of the Congo Basin through the International Association of the Congo.
Belgian King Leopold II violently took control of the African continent and declared it his personal property on February 5, 1885, creating the Congo Free State as a result. Leopold privately owned the Congo, as opposed to exercising colonial rule over it as other European nations did elsewhere in Africa.
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