The Founding of Tenochtitlan
Following a prophecy — an eagle perched on a cactus, devouring a snake — the wandering Mexica built their capital, Tenochtitlan, on an island in a lake and grew it into one of the largest, most spectacular cities on Earth, laced with causeways and floating gardens. From it they forged an empire that dominated Mesoamerica through tribute and ritual warfare. It followed the same path as the earliest states: a people binding a region together around a capital, a faith, and a god-backed elite.
A durable new order — a state, an institution, a system of rule — is deliberately built and consolidated, outlasting the people who founded it.