Aztecs

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…began to build what became the Aztec empire. Then a man by the name of Montezuma I came to power and the civilization was at the highest of its power. In 1519 a Spanish explorer and his troops came in on the Mexican coast and marched into Tenochtitan and took it over. From there, the whole empire fell, because tenochtitan was the main city in the Aztec empire, and with out it, the Aztecs were powerless.