Fall of Tenochtitlan
Battle
The fall of Tenochtitlan, the capital of the Aztec Empire, was an important event in the Spanish conquest of the empire. It occurred in 1521 following extensive negotiations between local factions and Spanish conquistador Hernán Cortés. Wikipedia
Dates: May 26, 1521 – Aug 13, 1521
Territorial changes: Creation of the Kingdom of New Spain
Location: Tenochtitlan and Mexico City