The Aztecs (/ˈæztɛks/) were a Mesoamerican culture that flourished in central Mexico in the post-classic period from 1300 to 1521. The Aztec peoples included different ethnic groups of central Mexico, particularly those groups who spoke the Nahuatl language and who dominated large parts of Mesoamerica from the 14th to the 16th centuries. Aztec culture was organized into city-states (altepetl), some of which joined to form alliances, political confederations, or empires. The Aztec Empire was a confederation of three city-states established in 1427: Tenochtitlan, city-state of the Mexica or Tenochca; Texcoco; and Tlacopan, previously part of the Tepanec empire, whose dominant power was Azcapotzalco. Although the term Aztecs is often narrowly restricted to the Mexica of Tenochtitlan, it is also broadly used to refer to Nahua polities or peoples of central Mexico in the prehispanic era,[1] as well as the Spanish colonial era (1521–1821).[2] The definitions of Aztec and Aztecs have long been the topic of scholarly discussion ever since German scientist Alexander von Humboldt established its common usage in the early nineteenth century.
<span>Its spread was limited by the Mediterranean Sea.
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The American Civil War is considered the first modern world for multiple reasons. Advances in technology made it possible to inflict mass casualties. Rifles were more accurate, took less loading time, and the bullets were more devastating in their effects. Earthworks were dug as barriers from direct gun and shellfire. Ironclad ships and the first submarines were used.
Other reasons that this war is considered the first modern war, was that it was possible, because of the railroads and telegraphs, to communicate in a timely manner, in different parts of the country. The war was widespread and communication was vital, whether it was to let someone know that they were getting new supplies of Enfield rifles, to alerting a commander that the opposition was changing position and heading to a new target.
Photography and reporting were extensive in this conflict, bringing the modern horrors of the battlefield into the homes of non-combatants. Everyone was effected or participated in the war. From the destruction of the South to the poor conditions of prison camps, this war touched almost everyone, in some way.