Few sharp social distinctions existed among the Aztecs during their early migrations, but by the early sixteenth century Aztec society had changed. A stratified social structure had emerged, and the warrior aristocracy exercised great authority. Men who had distinguished themselves in war occupied the highest military and social positions in the state. Generals, judges, and governors of provinces were appointed by the emperor from among his servants who had earned reputations as war heroes. These great lords, or tecuhtli (teh-COOT-lee), dressed luxuriously and lived in palaces.

Beneath the great nobility of military leaders and imperial officials was the class of warriors. Theoretically, every free man could be a warrior, and parents dedicated their male children to war, burying a male child’s umbilical cord with arrows and a shield on the day of his birth. In actuality, the sons of nobles were more likely to become warriors because of their fathers’ positions and influence in the state. At the age of six, boys entered a school that trained them for war. They were taught to fight, learned to live on little food and sleep, and to accept pain without complaint. At about age eighteen, a warrior fought his first campaign. If he captured a prisoner for ritual sacrifice, he acquired the title iyac, or warrior. If in later campaigns he succeeded in killing or capturing four of the enemy, he became a tequiua — one who shared in the booty and was thus a member of the nobility. If a young man failed in several campaigns to capture the required four prisoners, he became a macehualli (plural macehualtin), a commoner.

The macehualtin were the ordinary citizens — the backbone of Aztec society and the vast majority of the population. Members of this class performed agricultural, military, and domestic services and carried heavy public burdens not required of noble warriors. Government officials assigned them to work on the temples, roads, and bridges. Unlike nobles, priests, orphans, and slaves, macehualtin paid taxes. Macehualtin in the capital, however, possessed certain rights: they held their plots of land for life, and they received a small share of the tribute paid by the provinces to the emperor.

Beneath the macehualtin were the tlalmaitl, the landless workers or serfs who provided agricultural labor, paid rents in kind, and were bound to the soil — they could not move off the land. In many ways the tlalmaitl resembled the serfs of western Europe, but unlike serfs they performed military service when called on to do so. Slaves were the lowest social class. Most were prisoners captured in war or kidnapped from enemy tribes. Mexica slaves differed fundamentally from European ones, for they could possess goods; save money; buy land, houses, and even slaves for their own service; and purchase their freedom. If a male slave married a free woman, their offspring were free. Most slaves eventually gained their freedom.

Women of all social classes operated within the domestic sphere. As the little hands of the newborn male were closed around a tiny bow and arrow indicating his warrior destiny, so the infant female’s hands were wrapped around miniature weaving instruments and a small broom. Save for the few women vowed to the service of the temple, marriage and the household were a woman’s fate, and marriage represented social maturity for both sexes.