"Mexico" is a Nahuatl term for the heart of the Aztec Empire, namely the valley of Mexico and the surrounding territories, and its people are known as Mexico. The terms are clearly related; it is generally believed that the valley toponym was the source of the main ethnonym for the Aztec Triple Alliance, but it may have been the other way around. During the colonial era (1521-1821), Mexico was called New Spain. In the eighteenth century, this central region became the intendancy of Mexico, during the reorganization of the empire, the Bourbon reforms. After New Spain gained independence from the Spanish Empire in 1821 and became a sovereign state, the territory became known as the state of Mexico, and the new country was named after its capital: Mexico City, which itself was founded in 1524 on the site of the ancient capital of Mexico, Tenochtitlan.
The prehistory of Mexico dates back thousands of years. The earliest human artifacts in Mexico are fragments of stone tools found near bonfires in the valley of Mexico and dated by radiocarbon dating approximately 10,000 years ago. Mexico is a place of domestication of corn, tomatoes and legumes, which produced surplus agricultural products. This allowed the transition from Paleoindean hunter-gatherers to settled agricultural settlements, starting around 5000 BC. In subsequent epochs of culture formation, maize cultivation and cultural traits, such as the mythological and religious complex, as well as the vigesimal number system (base 20), spread from Mexican cultures to the rest of the Mesoamerican culture. During this period, villages became more dense in terms of population, becoming socially stratified at the expense of the craft class and turning into chiefdoms. The most powerful rulers had religious and political power, organizing the construction of large ceremonial centers.
The earliest complex civilization in Mexico was the Olmec culture, which flourished on the Gulf coast from about 1500 BC. Olmec cultural traits spread across Mexico to other formative cultures in Chiapas, Oaxaca, and the Valley of Mexico. During the formation of the country, various religious and symbolic traditions, as well as artistic and architectural complexes spread. The epoch of the formation of Mesoamerica is considered one of the six independent cradles of civilization. In the subsequent preclassic period, the Maya and Zapotec civilizations created complex centers in Calacmula and Monte Alban, respectively. During this period, the first true Mesoamerican writing systems were developed in the Epi-Olmec and Zapotec cultures. The Mesoamerican writing tradition reached its heyday in the classic Maya hieroglyphic script. The earliest written sources belong to this era. The tradition of writing became important after the Spanish conquest in 1521, when local scribes learned to write in their languages with letters of the alphabet, while continuing to create graphic texts.
In Central Mexico, at the height of the classical period, Teotihuacan dominated, which formed a military and commercial empire, whose political influence extended both to the south, to the Maya region, and to the north. Teotihuacan, with a population of over 150,000, had some of the largest pyramid structures in pre-Columbian America. After the collapse of Teotihuacan around 600 AD, competition arose between several important political centers in central Mexico, such as Xochicalco and Cholula. At this time, during the Epiclassical period, the Nahua peoples began to move from north to south, into Mesoamerica, and became politically and culturally dominant in central Mexico, as they displaced speakers of the Oto-Manguean languages. In the early post-classical era (around 1000-1519 AD), the Toltec culture dominated Central Mexico, the Mixtecs dominated Oaxaca, and the Maya lowlands had important centers in Chichen Itza and Mayapan. By the end of the post-classical period, Mexico had established dominance, creating a political and economic empire based in the city of Tenochtitlan (modern Mexico City), stretching from central Mexico to the border with Guatemala. Alexander von Humboldt popularized the modern use of the term "Aztecs" as a collective term applied to all peoples connected by trade, customs, religion and language with the State of Mexico and the Excan Tlahtoloyan, the Triple Alliance. In 1843, with the publication of the work of William H. According to Prescott, it was adopted by most countries of the world, including 19th-century Mexican scientists who considered it a way to distinguish modern Mexicans from pre-conquest Mexicans. This usage has been the subject of debate since the late 20th century.
The Aztec Empire was an informal empire or hegemon because it did not have supreme authority over the conquered territories; it was content to pay tribute from them. It was an intermittent empire because not all the dominated territories were connected; for example, the southern peripheral zones of Hokonochko did not have direct contact with the center. The hegemonic character of the Aztec empire was demonstrated by the restoration of local rulers to their former position after the conquest of their city-state. The Aztecs did not interfere in local affairs while the tribute was being paid. The Aztecs of Central Mexico built a tributary empire that encompassed most of central Mexico. The Aztecs were known for practicing human sacrifice on a large scale. Along with this practice, they avoided killing enemies on the battlefield. Their losses during the war were much lower than those of their Spanish counterparts, whose main goal was immediate slaughter during the battle. This particular Mesoamerican cultural tradition of human sacrifice gradually ceased with the Spanish conquest in the 16th century. Other indigenous Mexican cultures were conquered and gradually submitted to Spanish colonial rule.