No evidence allows us to believe that human sacrifices were practiced in Teotihuacán. On the other hand, there are no remains of fortifications. The almost total absence of the temples of warriors and military figures in the plastic parts is also a notable exception in ancient Mexico and allows us to affirm that the lofty ideas of such a theocracy were manifested in a kind of power that without violence and peaceful government. No one doubts that the construction of the ceremonial center, which lasted for a period of three centuries, must have required a huge and permanent recruitment of labor. It has been calculated that only considering the pyramid of the Sun, once completed, apparently in the first decades of our era, required a daily work of 3,000 men over a period of 30 years. The reason for these magnificent constructions lies, of course, in a unique urban phenomenon because of its breadth in the history of ancient Mexico. Religious prestige, persuasion and probable coercion ensured a kind of exodus, necessary for the construction of the sacred buildings and this at the same time provoked the development of a large and populated city.
About 15 years ago, Professor Renne Millon of the University of Rochester took his team to the ruins of Teotihuacan, previously divided in a detailed way in plots of 500 m2. This scientific exploration of a city that still has 9/10 of its buried joint, allowed them to obtain a surprising map of their habitat: At first glance we could believe that we were in front of one of those inexorable functional cities of U.S.A; In this articulation of perpendicular and parallel lines, the only thing missing is the name of the street and the number of the house. According to Renne Millón, Teotihuacan towards the year 150 D.C. Already occupied the 17 by 20 km2 and had 50,000 inhabitants, but for reasons unknown, its surface would not develop in the same proportion as its population. In the beginnings of the V Century, the city in the cusp of its fame, occupied the definitive area of 30 by 32 Km2 and its 100,000 inhabitants showed apparently they already showed an extremely dense population. Professor Millon diagnoses that two centuries later an over-population existed, which evaluates it in approximately between 125,000 and 200,000 souls.
A similar human concentration makes us think about the problem of supply. American researchers do not believe that valley crops have been sufficient to feed the great city since the fourth century. The edible products must have undergone mercantil amplifications, as well as the raw materials that were necessary for the craftsmen. Excavations have rebuilt the influence of the Teotihuacan culture throughout the high central plateau region, as do many points along the Gulf of Mexico coast, in the ancient Olmec region to Guatemala, where the important enclave of Kaminaljuyu can be Taken as an authentic replica of the City of the Gods. In this way, the hypothesis of some kind of empire of Teotihuacán is confirmed. An empire that with prestige, influence of religious and artistic norms, and the regular exchange of products, would not be enough to found and maintain for some centuries.