Tarascan Empire Expansion (1390s)

Timeline

1. 1391–1395Tzintzuntzan · MichoacánTarascan rulers strengthened Tzintzuntzan's administrative and religious functions as the imperial capital, expanding the pyramid complexes and noble districts and centrally coordinating the tribute and corvée of vassal city-states. The capital's consolidation provided a stable logistical base for subsequent external expansion.
2. 1393–1397Jalisco–Colima highlands · JaliscoTarascan armies advanced into the western and southern highlands, conquering or winning over several independent chiefly domains and bringing copper-smelting production areas and salt resources into the imperial tribute system. The expansion pushed the empire's territory further from the Aztec core zone.
3. 1397–1400Tarascan–Aztec border zone · MexicoAs both sides' spheres of influence expanded, the Tarascan empire and the Aztec alliance developed a long-term military standoff along their eastern border. Border conflicts and contests over buffer chiefdoms became one of the main axes of 15th-century Mesoamerican politics.