City-state politics in Central Mexico (1240s)

Timeline

1. 1241–1245Azcapotzalco · Valley of MexicoUnder pressure from powerful states like Culhuacan, the Mexica continued migrating within the valley, establishing a camp at Azcapotzalco and bearing vassal tribute, while warrior groups and priestly classes began shaping a distinctive city-state identity.
2. 1246–1250Texcoco and Xochimilco lake regions · Valley of MexicoCity-states such as Azcapotzalco, Culhuacan, and Texcoco redivided vassal and tribute obligations; the expansion of chinampa agriculture in the lake region supported population growth; war and intermarriage coexisted among the states, and the political map tended toward a multipolar stalemate by the late 1240s.