Imperialism is the policy of extending a country's power and influence through colonization, use of military force, or other means.

Spain was the first European country to establish a colonial empire in the Americas, beginning with the arrival of Christopher Columbus in 1492.

Calcutta (now Kolkata) was the British East India Company's trading post in India that became the center of British rule in the subcontinent.

Ghana was the first African country to gain independence from colonial rule, on March 6, 1957.

Indochina was the name of the French colonial empire in Southeast Asia, which included the countries of Vietnam, Cambodia, Laos, and parts of Thailand.

Belgium colonized the Congo region of Africa, which is now the Democratic Republic of the Congo.

Indirect Rule was the British policy of indirect rule in its African colonies, which allowed local rulers to retain some of their authority while being subject to British oversight.

France colonized Algeria, which is now an independent country.

Dutch East Indies was the name of the Dutch colonial empire in the East Indies, which is now Indonesia.

Britain colonized Kenya, which is now an independent country.

Portuguese Brazil was the name of the Portuguese colonial empire in Brazil, which is now an independent country.

Britain colonized the Gold Coast region of Africa, which is now Ghana.

French North Africa was the name of the French colonial empire in North Africa, which included the countries of Algeria, Tunisia, and Morocco.

France colonized the Ivory Coast region of Africa, which is now Côte d'Ivoire.

British India was the name of the British colonial empire in India, which lasted from 1858 to 1947.