Answer to Question 1
First, look at the materials that you have on hand - books, files, pamphlets, search the World Wide Web, etc. Then make some phone calls - your local extension agent is a good source, public health professionals, etc. A visit to their offices to pick up materials or to the public or university library might be in order.
Answer to Question 2
The Dutch ruled South Africa initially and were later joined by the British. Racial policies of Apartheid that were imposed by the white government led to considerable suffering and abuse of the native people. Yet, the commercial and industrial development and orderly system of government that had functioned under apartheid continues to benefit South Africans, including Blacks and Coloreds. The Congo was controlled by Belgium, and the natives died in large numbers from harvesting rubber. There was no development in the region, and resources were shipped out of the Congo.
Answer to Question 3
They were interested in trade but were also spurred on by their religious interest in a mythical Christian community led by Prester John that could help them fight Islam.
