1. Imperialism refers to the policy of extending control over other countries or territories economically, politically, and socially.
2. Nations industrialized due to incentives like wealth, power, nationalism, and spreading culture. They required factors of production like land, labor, capital, and entrepreneurship as well as political stability and transportation networks to trade.
3. European imperial powers colonized Africa in the late 19th century to gain access to resources and markets. They established systems of direct, indirect, and sphere of influence control over African peoples and territories.