On August 13, 1521, the conquistadors and their native allies seized Tenochtitlan, the capital of the Aztec empire. The Spaniards succeeded because they had agreed with the Tlaxcalans and other indigenous self-governing communities (altepetl) to fight the Aztecs. After the conquest these communities continued their traditions, and the Spaniards replaced Aztec leadership with their own. The friars and the secular church converted the natives, and together with the crown they foiled the conquistadors’ attempts to become liege lords with jurisdiction. The process culminated in the New Laws of 1542, which curbed the encomienda, a grant to a Spaniard that comprised several Indian towns paying him or her tribute. In its stead a society of corporations evolved, composed of town councils, lay brotherhoods of churches, and others, complete with their own laws and jurisdictions. Then a series of silver strikes beginning at Zacatecas in 1546 drew settlers into the region called the Bajío north of the former Aztec and Tarascan empires. The local natives resisted initially, and when peace came, they and the settlers created a dynamic early capitalist economy that invigorated other regions. The frontier expanded when animal herds moved further north beyond the mines, and the zone of Spanish influence grew to the south as well.
In 1540 Spanish conquistadors and their indigenous allies began seizing the northwestern Yucatan Peninsula, and they took Tiho/Mérida in 1542. The Yucatan, the Bajío, and the other regions that composed colonial Mexico successively integrated into a global commercial network spanning Europe, Africa, and Asia. The crown and the merchant guild (consulado) in Seville sought to capture the burgeoning Atlantic commerce within the fleet shuttling between Seville/Cadiz and Veracruz and restrict the silver flowing from Acapulco to Asia via the Philippines. Market forces defied most of the rules they put in place. Merchants from Asia settled in Manila; Peruvians docked in Acapulco; and the Dutch, French, and English competed with fleet merchants or operated contraband trade from the Caribbean islands to New Spain. In the 18th century, the crown found allies to loosen trade regulations within the empire and curb corporative autonomies. A series of audits (visitas) shook New Spain, and more compliant viceroys and officials appeared, while the friars lost over one hundred parishes (doctrinas) during the mid-century. The king expelled the Jesuits in 1767; registered ships sailing individually replaced the fleet in 1778; and in 1786 José de Gálvez introduced the intendants in New Spain. As the empire transitioned toward a territorial state, Napoleon imprisoned the Spanish king (1808). In 1810 Miguel Hidalgo and a popular following unleashed the War of Independence. As the conflict unfolded, the legitimacy of the old order crumbled, and the empire dissolved in 1821.
When the anthropologist Paul Kirchhoff proposed a new definition of Mesoamerica in a landmark study from 1943, the first common characteristics he identified were technological and agricultural: the use of the digging-stick (coa) and “the construction of gardens by reclaiming land from lakes (chinampas).” For thousands of years, Native peoples across Mesoamerica drew on their technological innovations to devise bountiful kinds of farming that have been as diverse as the environments in which they were created. All of their farming systems required some degree of intervention in nature, be it through domesticating plants, tilling the soil, or altering the physical environment by making terraces and harnessing water supplies. On an essential level, then, technology and agriculture went hand in hand. Of the many kinds of Mesoamerican farming, the one that arguably modified the environment the most was a distinctive kind of wetland agriculture in which Nahuas—or Aztecs, the speakers of the Nahuatl language—constructed raised garden beds, known as chinampas, in the shallow, freshwater lakes of the Basin of Mexico.
At the heart of this zone of wetland agriculture was the ancient city of Xochimilco. There the raised gardens filled the surrounding lake of the same name, and eventually came to cover a vast area of some 120 square kilometers. The construction and the intensive cultivation of the chinampas required a considerable investment of time and effort, a good deal of technical expertise, and the mastery of specialist skills and knowledge, including hydrology and engineering so as to manage water levels in the lakes through complex irrigation works. The intensive farming of the fertile, well-irrigated gardens, which could be cultivated year round, yielded sizable harvests of maize and other crops. So productive was chinampa agriculture that scholars have considered it one of the most abundant kinds of farming ever devised. As a technological innovation and environmental adaptation, the chinampas were crucial to changes in Mexican history: they generated surpluses sufficient for urbanization and the rise of Tenochtitlan, one of the early modern world’s great cities, as well as the expansion of the Aztec Empire. The chinampas remained important for the provisioning of the capital long after the Spanish conquest, and in spite of the desiccation of the Basin of Mexico, they are still cultivated in a few places today.