Add Yahoo as a preferred source to see more of our stories on Google. Olmec culture deeply shaped later Mesoamerican civilizations like the Aztecs. Danny Lehman/The Image Bank via Getty Images An ...

Aztec writing sometimes used different colours to refine a word's meaning: This page is from an early 16th century book about Aztec imperial taxation, the Matricula de Tributos, now in the National ...

Watch on Ancient Civilizations The Rise and Fall of the Aztec Civilization Explore the history of the Aztecs, their incredible achievements in art, architecture, and warfare, as well as the factors ...

At the height of their power, the Aztec Empire supported a population of up to 3 million in the Valley of Mexico, and many of their largest cities had populations exceeding 100,000. This was not easy, ...