The first forms of economic organization in Pre-Hispanic Mexico were agriculture and hunting activities. The first people who inhabited the Mexican lands and part of Central America were great builders and later on creators of some of the most advanced civilizations of that time. The economy of that time, however, was based on commercial activities, the division of society into classes, and later the importance that was generated in the economy by the so-called Tlatoani of the Aztecs.

Pre-classic Period

The Pre-classic period in Mesoamerica (2500 BC – 200 AD)

During this period, there was an increase in the population and sedentarism, causing the origin of complex societies with intensive cropping systems. Some researchers said that agriculture forced societies to adopt a sedentary lifestyle; others think that the reason was due to the increase in the population since agriculture could supply more food than hunting.

The ancient cultures which developed during that period tended to manufacture and improve ceramics. Ceramics were very important because they allowed a better transportation of materials, as well as aiding in the development of newer ovens to create special handcrafts such as female figurines.Economic Anthropology (Stanford University Press) 1898, p.254-286. Stuart Plattner. .

The early Pre-classic (2500 BC – 1200 BC)

In this period began the settlement of ancient societies, groups of small villages or small houses inhabited by large families. However, there was still no social structure until the middle and late Preclassic period. In agriculture, societies that settled in states such as Puebla, Tlaxcala and Tabasco started to domesticate wild plants such as corn, amaranth, pumpkin, chilli pepper and green tomato. On the other hand, in the peninsula of Yucatan and Mexico, they had not yet domesticated plants.

The Middle Pre-classic Period (1200 BC – 400 BC)

During this period, society was divided into classes, and each had different activities. People from the upper classes or elite groups were dedicated to the organization of commerce as well as religious ceremonies, while those in the lower classes were mainly focused on agriculture and the construction of cities.

Long-distance trade between the ancient cultures of Mesoamerica was increasing, but above all, regional specialization was a key factor during this period. Trade was also important in relations between allies and vassals. However, long-distance trade was limited by the means of transportation. Some cultures used tlamemeh porters to carry goods on their backs, with relays set up at specific intervals.

Civilizations of the middle Pre-classic (1200 BC – 400 BC)

Olmecs

The Olmecs may be considered the mother culture of the Pre-Columbian civilizations. The Olmecs regional centre was San Lorenzo (1150 - 900 BC), and even though their economic activity in this centre is still unknown, obsidian workshops have been found. The second capital of the Olmecs was La Venta (900 – 500 BC) where, due to its location and easy access to natural resources, many important activities took place, such as fishing, hunting and overall agriculture.

Mayas The Maya civilization based their economy mainly on agricultural trade, but hunting of wild animals and collecting forest products were also important activities. Maya agriculture was also based on harvesting corn.Maya civilization 2014, p. 14. Robert J. Sharer and Loa P. Traxler. . The population increase during the early and late pre-classic forced the rulers to find alternatives for high-yield harvesting. Intensive methods were introduced that made use of irrigation channels and special techniques associated with hydraulic engineering. They were also trading products like salt, seashells, obsidian, jade and Quetzal feathers, with other nearby regions."Los Mayas"

Aztecs The Aztec economy was based on agriculture and trade. Agriculture provided a great variety of fruits and vegetables, such as tomatoes, chilli peppers, pumpkins, and beans, necessary to feed the high number of inhabitants in the empire. The Aztec agrarian economy is considered one of the most evolved of Indigenous America, only surpassed by the system implemented in the Andean area. The products that could not be obtained in the Valley of Mexico were acquired through trading with other regions by merchants, who travelled long distances. In the market of Tenochtitlan, all kinds of merchandise were traded, including products from the Pacific and Atlantic oceans, both of them 500 km away from the Aztec capital. In order to trade, "primitive coins" were used, such as cacao seeds and Quetzal feathers. The Aztec economic system based on this simple way of trading was highly efficient, maintained great stability, and ensured the welfare of the majority of the population of the empire."Economia Tolteca: Crecimiento y desarrollo".

Toltecs Among the first economic activities of the Toltec culture is agriculture, through the cultivation of chilli, corn and beans as well as maguey, the raw material for the alcoholic beverage called 'pulque', and cotton. Later on, they specialized in other fields such as handicrafts made of cotton, as well as practices of trade and tribute. They started to create 'monopolies' that held back trade with other civilizations and regions under their authority in order to ensure their own economic and patrimonial wealth. The tribute system was something very characteristic of this culture; it consisted of the request and payment of scarce or new products to the tribes or regions that were conquered. Similarly, merchants that needed to cross their territories had to pay these tributes. That way, the Toltecs managed to control and administer all their territories and took great advantage of their commercial areas and natural resources."Fuentes de subsistencia".

Tlaxcala

In Tlaxcala, they specialized in trading corn and woodlouse. This type of insect was very appreciated because it was used to elaborate red colour paint which was later used in textiles. In exchange for those goods, they received products like cocoa, cotton, chilli, vanilla, feathers, tobacco, wax, honey and maguey. The market of Ocotero was the main commercial centre where, according to some authors, more than 20 thousand went every day to trade for products such as cocoa and cotton blankets brought by the Mayans. Due to their bad relationship with Tlaxcala, the Aztecs tried to prevent their trading with the regions nearby the Gulf of Mexico.Camargo, D. M. (1892). Historia de Tlaxcala. México: Oficina de la Secretaria de Fomento.

Mixtecs In Mesoamerica, there was a very limited number of domesticated animals. The turkey and the ancient dog called Xoloitzcuintle are two examples; both of them were sources of meat consumed on a small scale in the indigenous societies. The basis of the Mixtecs' economy was not only agriculture but also hunting, the collection of materials and fishing to complement their diet and to cover other needs. One of the advantages they had was its great diversity of microclimates, reason why many of the manors that developed in that area were self-sufficient. The inhabitants were incorporated into a wide network of trade among other Mesoamerican civilizations. In addition to the fruits and woodlouse, they were trading in precious metals and handicrafts. From very early dates, they were integrated as producers of minerals, especially magnetite. It has been proven that during the Middle Pre-classic period the red ceramic was a product of trade with the Olmecs of the Gulf of Mexico.Jácome, A. G. (2003). Cultura y agricultura: transformaciones en el agro mexicano. Universidad Iberoamericana.

Valley of Mexico

Many capitals emerged in the Valley of Mexico, such as Tlacopaya, Tatilco, and Coapexco; these capitals were also in charge of the trading routes. On those routes took place trade of different goods like asphalt, cinnabar, quartz, obsidian and pyrite. Researchers have found that approximately in the year 1000 BC there was a great development in hydraulic systems in semiarid regions, with the use of the chinampa, many cultures could have a better use of the land.

In the Valley of Oaxaca, there was an increase in the population and a better-structured society. The most important period of that region was San Jose Mogote, which had several adobe and stone platforms and was surrounded by many villages that produced different products like salt or were specialized in the production of handcrafts.

Trade of civilizations during the Middle Pre-Classic

Some examples of the most important places for trade and the products they were trading are the following: Cuenca de México and Guatemalan altiplano – Obsidian Valley of Morelos – Kaolinite Valley of Oaxaca –Magnetite Pacific Coast of Chiapas – Cocoa Maya civilization – Quetzal feathers

The late Pre-classic (400 BC – 200 AD)

During this period, there was an increase in the construction of buildings, roads, and hydraulic systems used for water storage and drainage. Also, the creation of chinampa's and terraces allowed a better production of food, which generated an increment in the population and the strengthening of centralized government. Later cities were abandoned searching for other capitals such as Teotihuacán, Cholula or Cuicuilco, which were richer and had a stronger centralized government.

Cuicuilco

Cuicuilco was the most important region in the Pre-classic, built on very fertile land surrounded by volcanoes, among them, the Xitle volcano. It had a population of 53.000 people, which was one of the most populated cities after Teotihuacán. Unfortunately, due to the eruption caused by the volcano Xitle in 100 BC, a huge part of the population died."Descubren una gran estela ligada al culto agrícola en Cuicuilco, de 3000 años de antigüedad, contemporánea de la cultura Olmeca"

Another natural disaster occurred in 1 AD: the eruption of the volcano Popocatépetl caused the population of capital cities like Chacaltzingo, Atlantepec, Cuajimalpa, Amaluacan, etc. to move to other capitals such as Cholula, Totimehuacan, and Teotihuacán. Thus, those capitals became megalopolis which had exponential growth in economy and culture.

Researchers affirm that the Pyramid of the Sun and Pyramid of the Moon in Teotihuacán were expected to be finished after two centuries; however, with the arrival of more people to work, the project was finished later. The main economic activity in Teotihuacán was agriculture and trade, as well as the tributes that they received from other cultures that were under their domain.

Agriculture in Teotihuacán had innovations such as the construction of terraces, chinampa and irrigation channels. Teotihuacán exported mainly cocoa, cotton, and obsidian. Near Teotihuacán were large amounts of obsidian, a stone used to elaborate knives, arrowheads or sculptures; this allowed to trade in obsidian with all the civilizations of Mesoamerica. In the Valley of Oaxaca, the great city of Monte Albán reached 14000 inhabitants (200 BC- 250 AD), and they were trading with Teotihuacán crops like corn, beans, and avocado for obsidian, jade, pottery, and salt.

Classical period (200 AD – 900 AD)