The imperialism era took place mainly in the 1800s and early 1900s. During this time, powerful countries expanded their control over other regions. European nations such as Britain and France built large empires across Africa and Asia.

Maps from this period show large areas controlled by foreign powers. Colonies provided raw materials like rubber, cotton, and minerals. Ports, railways, and administrative centers were built in many regions.

Imperial expansion reshaped borders and governments. Territories in Africa, India, and Southeast Asia were governed by distant countries. This era is studied through maps, records, and agreements between empires.