Short Answers
Africa remained isolated and untouched for a long time because of its vast size, difficult surface features, climate, and strategic location, which made it hard for outsiders to access and control the interior; its geography helped protect it from early invasions.
The Industrial Revolution increased Europe’s demand for cheap labor, raw materials, and new markets, which pushed European powers to claim colonies in Africa and compete aggressively for resources and land.
European leaders said the goal of the Berlin Conference was to settle territorial disputes in Africa peacefully and prevent war among themselves. Real goal: to divide Africa among European powers and establish rules to control lands and resources without European fighting.
Article 34 established that a European nation claiming an African coast or declaring a protectorate had to inform the signatories of the Berlin Act; if they failed to, the claim would not be recognized.
The Europeans did not adequately consider the desires and rights of the indigenous peoples of Africa; their interests were secondary to European power, control, and resource extraction.
The effects still evident today include arbitrary borders that split ethnic groups or combined enemies under one government, causing ongoing conflict and strife in some regions, and the enduring impact of colonial-era boundaries on current politics and society.