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1846–1848 · Americas · War

Mexican–American War

War following the U.S. annexation of Texas ended with Mexico ceding an immense northern territory to the United States.

Atlas dossier · Industrial & Imperial Age

Free device narration · synchronized English captions · transcript available

Why it matters

The conflict fulfilled a major phase of U.S. expansion while intensifying disputes over slavery and transforming Mexican and Indigenous lands.

Date
1846–1848
Historical setting
Industrial & Imperial Age · Americas
People & communities
Mexican and U.S. soldiers · civilians · Indigenous nations · Polk · Santa Anna
01

Event

War following the U.S. annexation of Texas ended with Mexico ceding an immense northern territory to the United States.

02

People

Mexican and U.S. soldiers · civilians · Indigenous nations · Polk · Santa Anna

03

Consequences

The conflict fulfilled a major phase of U.S. expansion while intensifying disputes over slavery and transforming Mexican and Indigenous lands.

Interpretation note

Evidence, memory and historical debate

This dossier distinguishes the event’s basic chronology from later arguments about meaning, responsibility and legacy. When comparing religious, national, Indigenous or scholarly interpretations, consult the primary and institutional sources above alongside peer-reviewed historical work.

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