How did european colonial powers limit economic opportunities for africans in the early 20th century?

Africa was developing independently until it was taken by the capitalist powers of colonial Europe. Exploitation increased preventing this society of the benefit of their natural resources. By the early 20th century much of Africa, except Ethiopia and Liberia, had been colonized by European powers; even though African societies put up various forms of resistance against colonization. Between 1870 and 1900, Africa encountered military invasions done by Europe which led to an eventual conquest and colonization.

The European colonial powers were motivated by political, social and economic factors. It is important to note that Europe's first motivation for their intrusion was economic. It all started with the disintegration of the slave trade's benefits, its elimination and extinction, as well as the growth of the Industrial Revolution in Europe. Europe also wanted to control and have more lands that had raw materials which they needed for their industrial economy, and to open new markets for the goods made by them. This led to Europeans settling for extraction, appropriation of land for settlers or plantations, which made Africans to sell their work to European farmers, planters or mine-owners. Economy was monopolized by Europeans.  

By 1900 much of Africa had been colonized by seven European powers—Britain, France, Germany, Belgium, Spain, Portugal, and Italy. After the conquest of African decentralized and centralized states, the European powers set about establishing colonial state systems

Between the 1870s and 1900, Africa faced European imperialist aggression, diplomatic pressures, military invasions, and eventual conquest and colonization. At the same time, African societies put up various forms of resistance against the attempt to colonize their countries and impose foreign domination. By the early twentieth century, however, much of Africa, except Ethiopia and Liberia, had been colonized by European powers.

The European imperialist push into Africa was motivated by three main factors, economic, political, and social. It developed in the nineteenth century following the collapse of the profitability of the slave trade, its abolition and suppression, as well as the expansion of the European capitalist Industrial Revolution. The imperatives of capitalist industrialization—including the demand for assured sources of raw materials, the search for guaranteed markets and profitable investment outlets—spurred the European scramble and the partition and eventual conquest of Africa. Thus the primary motivation for European intrusion was economic.

The political impetus derived from the impact of inter-European power struggles and competition for preeminence. Britain, France, Germany, Belgium, Italy, Portugal, and Spain were competing for power within European power politics. One way to demonstrate national preeminence was through the acquisition of territories around the world, including Africa.

The social factor was the third major element. As a result of industrialization, major social problems grew in Europe: unemployment, poverty, homelessness, social displacement from rural areas, and so on. These social problems developed partly because not all people could be absorbed by the new capitalist industries. One way to resolve this problem was to acquire colonies and export this "surplus population." This led to the establishment of settler-colonies in Algeria, Tunisia, South Africa, Namibia, Angola, Mozambique, and central African areas like Zimbabwe and Zambia. Eventually the overriding economic factors led to the colonization of other parts of Africa.

Thus it was the interplay of these economic, political, and social factors and forces that led to the scramble for Africa and the frenzied attempts by European commercial, military, and political agents to declare and establish a stake in different parts of the continent through inter-imperialist commercial competition, the declaration of exclusive claims to particular territories for trade, the imposition of tariffs against other European traders, and claims to exclusive control of waterways and commercial routes in different parts of Africa.

Systems of servitude and slavery were common in parts of Africa by the early 2oth century, as they were in much of the ancient world. In many African societies where slavery was prevalent, the enslaved people were not treated as chattel slaves and were given certain rights in a system similar to indentured servitude elsewhere in the world.

As it turned out, the development aspects of these programs did little for European economies. Indeed, some of the more ambitious schemes such as the British Tanganyika (mainland Tanzania) Groundnut Scheme and the French West African Office du Niger proved to be very expensive failures. However, it proved possible for France to combine a continued influence in Africa with European economic unification by making the association of its overseas territories (and the sharing of their development aid, mainly by West Germany) a condition for signing the 1957 Treaty of Rome, the founding document of the European Economic Community.

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