The correct answer is: King Leopold ll started an expedition with the goal of colonizing Congo. He hired Hebert Stanley to explore and establish colonies in Congo.
In the 1870s the king of Belgium, Leopold II, thought that he could colonize the hill of the homonymous river. Then, he financed to Henry Morton Stanley, who was the first Westerner to map the area, in order to prepare the territory for the later colonization of Congo.