Imperialism in the Industrial Age (AP World History: Modern, Unit 6)

Imperialism

A policy/practice in which a powerful state extends control over other lands and peoples politically, economically, and/or culturally.

Industrialization (as a driver of imperialism)

The growth of industrial economies that made overseas expansion more feasible (new technologies like steamships/telegraphs/industrial weapons/medicine) and more attractive (competition, demand for resources, mass politics).

Raw materials (imperial rationale)

Inputs industrial factories needed—such as cotton, palm oil, rubber, and metals—whose rising demand encouraged imperial powers to seek secure access through control or influence abroad.

Markets (imperial rationale)

Overseas consumers/places to sell manufactured goods; industrial states feared “overproduction” and viewed colonies or dependent regions as captive or preferential markets.

Investment opportunities (imperial rationale)

Chances for wealthy investors to earn higher returns by financing projects abroad (railroads, mines, ports, plantations), with imperial control reducing the perceived risk.

Informal imperialism

Economic/diplomatic dominance without full annexation, often achieved through treaties, debt, and unequal trade arrangements rather than direct colonial rule.

Chokepoint (strategic concept)

A narrow, highly strategic passage or route (often tied to canals/sea lanes) whose control could shape naval movement, trade, and imperial security.

Coaling station

A port/base where steam-powered navies could refuel; acquiring coaling stations worldwide was a major strategic motivation for imperial expansion.

Balance of power and rivalry

Geopolitical competition in which states sought territory and bases to avoid falling behind rivals, helping drive rapid late-1800s expansion (e.g., in Africa).

Buffer zone

A region controlled or influenced to protect a state’s borders/frontiers from rivals; often used to explain contiguous land expansion (e.g., Russia in Central Asia).

Protectorate

A form of imperial control where local rulers remain nominally in place, but the imperial power controls foreign policy and key decisions.

Sphere of influence

A formally independent area where one foreign power claims special/exclusive rights (trade, investment, legal privileges), representing control short of annexation.

Unequal treaty

An agreement imposed under threat or after defeat that grants foreign powers special trade rights, territory, or legal protections, undermining local sovereignty.

Extraterritoriality

A legal privilege common in unequal treaty systems where foreigners are tried under their own laws rather than local courts, reducing the host state’s authority.

Chartered company

A private firm backed by a state that can act like a government abroad—collecting taxes, controlling territory, and maintaining armed forces (e.g., in early empire-building).

British East India Company (EIC)

A British trading enterprise that became a territorial power in South Asia through alliances, taxation/revenue control, and armies before the British state took direct control.

Indian Rebellion of 1857 (Sepoy Rebellion)

A major uprising against British authority in South Asia that, although suppressed, contributed to ending EIC rule and led to direct British governance.

British Raj

Direct rule of South Asia by the British government established after 1857, replacing East India Company control and tightening administration and military oversight.

Berlin Conference (1884–1885)

A meeting where European powers set guidelines for claiming African territory; it did not start imperialism in Africa but formalized and accelerated partition by managing rivalry.

Scramble for Africa

The rapid late-1800s partition of Africa by European powers, intensified by rivalry and formalized by rules set at the Berlin Conference.

Civilizing mission

An ideological claim that imperial powers were spreading “civilization” (education, technology, political institutions), which shaped public support and colonial policy.

Mission civilisatrice

The French version of the civilizing mission, emphasizing spreading French language, schooling, and (in theory) assimilation, though practice varied.

Social Darwinism

A pseudo-scientific misuse of evolutionary ideas claiming societies/races were in a struggle where the “fittest” should dominate, used to justify conquest and inequality.

Missionary activity (religious rationale)

The work of missionaries establishing schools/clinics/churches and promoting moral reform; conflicts involving missionaries could become diplomatic flashpoints used to justify intervention.

National prestige (domestic rationale)

The idea that colonies signaled national greatness; empire was promoted through maps, textbooks, exhibitions, newspapers, and popular culture, making imperialism politically valuable at home.