Engineering An Empire - The Aztecs

The Aztec Empire was peopled by a group that was once nomadic, the Mexicas. Their chroniclers told them that after their long journey from Aztlán, they found themselves to be outcasts, until they found the sign sent to them by their god Huitzilopochtli, and began to build their city. And so the Mexica peoples continued, and the Aztec Empire began.

The city of Tenochitlan was soon to become one of the largest cities in the world. The power of the Mexica peoples became more consolidated, and they began to form alliances. Their military power grew as well, and they began to conquer peoples in the surrounding areas.

At the height of its power, the Aztec Empire was organized and strong, but ruled with fear. In 1519, a clash of cultures was to take place, unlike anything before it. Although there was much tragedy in both the Spanish and Aztec empires before this, the meeting of the two civilizations was disastrous. In a few short years, the culture and structure of one of histories greatest empires would have virtually vanished;
(^_^)>http://www.aztec-history.com/
The Aztec people were certain ethnic groups of central Mexico, particularly those groups who spoke the Nahuatl language and who dominated large parts of Mesoamerica from the 14th to 16th centuries.
...

From the 13th century, the Valley of Mexico was the heart of Aztec civilization: here the capital of the Aztec Triple Alliance, the city of Tenochtitlan, was built upon raised islets in Lake Texcoco. The Triple Alliance formed a tributary empire expanding its political hegemony far beyond the Valley of Mexico, conquering other city states throughout Mesoamerica. At its pinnacle, Aztec culture had rich and complex mythological and religious traditions, as well as reaching remarkable architectural and artistic accomplishments. In 1521 Hernán Cortés, along with a large number of Nahuatl speaking indigenous allies, conquered Tenochtitlan and defeated the Aztec Triple Alliance under the leadership of Hueyi Tlatoani Moctezuma II. Subsequently the Spanish founded the new settlement of Mexico City on the site of the ruined Aztec capital, from where they proceeded with the process of colonizing Central America.

Aztec culture and history is primarily known through archaeological evidence found in excavations such as that of the renowned Templo Mayor in Mexico City; from indigenous bark paper codices; from eyewitness accounts by Spanish conquistadors such as Hernán Cortés and Bernal Díaz del Castillo; and especially from 16th and 17th century descriptions of Aztec culture and history written by Spanish clergymen and literate Aztecs in the Spanish or Nahuatl language, such as the famous Florentine Codex compiled by the Franciscan monk Bernardino de Sahagún with the help of indigenous Aztec informants;
(^_^)>http://en.wikipedia.org/wiki/Aztec
KGB