Cortés then switched to a new tactic. Tenochtitlan could only be reached by the three causeways, so he blocked them off and set up a siege. By systematically wiping out or allying with the towns ...

The battle of Tenochtitlán is seen as the beginning of the end of the Aztec empire, which in its heyday ruled over the central Mexican highlands. The archaeologists behind the discovery say that ...