World-changing1519 – 1521 · 2 years

Spanish Conquest of Mexico

Mexico · Tenochtitlan · Aztec Empire

Spanish conquest of Mexico (1519-1521) destroyed indigenous civilizations and created New Spain—the foundation of modern Mexico.

Estimated casualties

3.0M – 5.0Mestimated dead

HEADLINE3.6M — the single figure used on the map

Conquest 1519-1521 + aftermath. Direct combat lower; most deaths from disease and famine post-conquest.

SOURCEWikipedia: Spanish conquest of the Aztec Empire; Clodfelter

What happened

Cortés' conquest of Mexico (1519-1521) as described above. Following conquest, Spain established New Spain colonial rule (1521-1821). Spanish imposed Christianity, Spanish language, and racial hierarchy. Indigenous populations were enslaved in encomienda system. Mestizaje created mixed-race population. Spanish extracted wealth (silver, agriculture, labor) for 300 years. By 1821, Mexican independence created a new nation inheriting Spanish colonial structures and inequalities.

Why it mattered

Spanish conquest transformed Mexico from indigenous empires to European colonial state. It created Mexican mestizo identity and Spanish-speaking Catholic civilization. Colonial extraction enriched Spain and Europe; Mexico inherited poverty and inequality. The conquest's legacy—colonial structures, racial hierarchy, indigenous marginalization—shapes modern Mexico. Modern Mexican nationalism partly invokes indigenous resistance to Spanish conquest while accepting mestizaje as defining identity.

Belligerents3

  • Spain
  • Aztec Empire
  • Tlaxcala

ON THE MAPSpanish Empire (Americas)Aztec EmpireTlaxcala

Conflict graph

SUB-CONFLICTS · 5

Sources

  1. Wikipedia: Spanish Conquest of Mexico
  2. Clodfelter, Warfare and Armed Conflicts (4th ed., 2017)
  3. Wikipedia — text reused under CC BY-SA 4.0

Open in the atlas →Seeks the timeline to 1519 and opens this record.

19.43°N · 99.13°W · 1519 – 1521WARS-ATLAS / CONFLICT / SPANISH-CONQUEST-MEXICO

Cite as: Spanish Conquest of Mexico (1519 – 1521). War Atlas. https://waratlas.org/c/spanish-conquest-mexico · Sources & methodology