Aztecs (/ˈæztɛks/) were a Mesoamericanculture 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 Mesoamericafrom 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.[3]
Most ethnic groups of central Mexico in the post-classic period shared basic cultural traits of Mesoamerica, and so many of the traits that characterize Aztec culture cannot be said to be exclusive to the Aztecs. For the same reason, the notion of "Aztec civilization" is best understood as a particular horizon of a general Mesoamerican civilization.[4] The culture of central Mexico includes maizecultivation, the social division between nobility (pipiltin) and commoners (macehualtin), a pantheon (featuring Tezcatlipoca, Tlaloc and Quetzalcoatl), and the calendric system of a xiuhpohualli of 365 days intercalated with a tonalpohualli of 260 days. Particular to the Mexica of Tenochtitlan was the patron God Huitzilopochtli, twin pyramids, and the ceramic ware known as Aztec I to IV.[5]
From the 13th century, the Valley of Mexicowas the heart of dense population and the rise of city-states. The Mexica were late-comers to the Valley of Mexico, and founded the city-state of Tenochtitlan on unpromising islets in Lake Texcoco, later becoming the dominant power of the Aztec Triple Alliance or Aztec Empire. It was a tributary empire that expanded its political hegemony far beyond the Valley of Mexico, conquering other city states throughout Mesoamerica in the late post-classic period. It originated in 1427 as an alliance between the city-states Tenochtitlan, Texcoco, and Tlacopan; these allied to defeat the Tepanec state of Azcapotzalco, which had previously dominated the Basin of Mexico. Soon Texcoco and Tlacopan were relegated to junior partnership in the alliance, with Tenochtitlan the dominant power. The empire extended its reach by a combination of trade and military conquest. It was never a true territorial empire controlling a territory by large military garrisons in conquered provinces, but rather dominated its client city-states primarily by installing friendly rulers in conquered territories, by constructing marriage alliances between the ruling dynasties, and by extending an imperial ideology to its client city-states.[6] Client city-states paid tribute to the Aztec emperor, the Huey Tlatoani, in an economic strategy limiting communication and trade between outlying polities, making them dependent on the imperial center for the acquisition of luxury goods.[7] The political clout of the empire reached far south into Mesoamerica conquering polities as far south as Chiapasand Guatemala and spanning Mesoamerica from the Pacific to the Atlantic oceans.created a vast system of coastal and mountain roads to link its empire
Division of power tend to prolonged the legislation making process.
Explanation:
Division of power is initially created to prevent the government from becoming to powerful. We do this by dividing the government into three branches. The legislative branch to create the laws, the executive branch to implement the law, and the judicial branch to oversee the law
Even though this division is important, it has its own downside.
One of them is that it can prolonged the legislation making process. In order to pass a certain type of law, the legislative branch need to pass an examination made by the judicial branch and approval from the president on the legislative branch. Those branches do not always agree on key issues. This make the process to create a law become long and complicated.
The theory of evolution by natural selection, first formulated in
Darwin's book "On the Origin of Species" in 1859, is the process by
which organisms change over time as a result of changes in heritable
physical or behavioral traits. Changes that allow an organism to better
adapt to its environment will help it survive and have more offspring.
Evolution by natural selection is one of the best substantiated
theories in the history of science, supported by evidence from a wide
variety of scientific disciplines, including paleontology, geology,
genetics and developmental biology.
The theory has two main points, said Brian Richmond, curator of human
origins at the American Museum of Natural History in New York City. "All
life on Earth is connected and related to each other," and this
diversity of life is a product of "modifications of populations by
natural selection, where some traits were favored in and environment
over others," he said.