A century after the collapse of the Toltec civilization, several allied tribes of Nahuatl-speaking people moved into the Valley of Mexico from the north. The principal tribe was known as the Mexica and collectively the tribes came to be known as the Aztecs. The Mexica eventually dominated the other tribes and became the major force in the establishment of the Aztec Empire in central Mexico. The name Mexico is derived from the word Mexica. Aztec civilization, drawing on the cultural advances of the Toltec and other peoples that had lived in the region, reached high levels of artistic, economic, and intellectual development.

When the Aztecs arrived in the Valley of Mexico, most likely in the mid-13th century, they were surrounded by powerful neighbors who exacted tribute from them. They were forced to occupy a swampy area on the western side of Lake Texcoco, where their only piece of dry land was a tiny island surrounded by marshes. According to legend, the Aztecs established their settlement on the site where they observed an eagle with a serpent in its grasp on top of a cactus. The eagle and the serpent are the state symbol of modern Mexico and can be found on the nation's flag and currency.

As the Aztecs grew in number, they established powerful military and civil organizations. Their island settlement, known as Tenochtitlán, soon grew from a small village of huts into a large city of adobe houses and stone temples. It became the Aztec capital, serving as the center for Aztec trade and military activity throughout the region. It is estimated that at the time of the Spanish invasion in the early 1500s, the city was one of the largest in the world and supported a population of about 200,000 people.

Tenochtitlán's military strength increased, and under Itzcoatl, the first Aztec emperor, the Aztecs extended their influence throughout the entire Valley of Mexico. By the 15th century, the Aztecs had become the preeminent power in central and southern Mexico.

The political organization of the Aztec Empire extended far beyond Tenochtitlán and rested on a triple alliance between the city-states of Tenochtitlán, Texcoco, and Tlacopan. The alliance, which was established in the mid-1400s, was soon dominated by the Aztecs. A series of military campaigns extended the Aztecs' power and influence well beyond the central valley and across Mesoamerica. On the eve of the Spanish conquest, Aztec-controlled territory reached west to the Pacific Ocean, east to the Gulf of Mexico, and south nearly to the modern-day border with Guatemala. Because of resentment against Aztec rule and internal strife within the far-flung Aztec Empire, Spanish invaders would later be able to ally with a number of Native American peoples who would help them to defeat the Aztecs.

C. Religion

As an agricultural society, Aztec civilization was greatly affected by the forces of nature; Aztec mythology, consequently, revolved around the worship of gods who represented the Earth, rain, and the Sun. The appeasement of such gods through human sacrifice, a practice already well established in Mesoamerica, was an indispensable part of Aztec religion. According to one Aztec belief, the Sun required daily offerings in order to ensure that it would rise again the next day

Aztec priests typically offered the gods human hearts and blood from just-killed victims—most often male prisoners who had been captured in battle and later marched or dragged to the top of a ceremonial pyramid. The need for new sacrificial victims was one factor that pushed the warlike Aztec to continuously seek new territory and peoples to conquer.

Aztec religion also included worship of the plumed serpent Quetzalcoatl, the god of wind and learning. According to Aztec legend, Quetzalcoatl had been tricked and disgraced by another god, Tezcatlipoca, and then traveled to the east. He vowed to return and destroy those who worshiped his enemies. By the early 1500s, word of the arrival of the Spaniards in the Caribbean Sea had traveled to the Aztecs, triggering rumors that an angry Quetzalcoatl had returned to exact his revenge. While the Aztecs would soon learn that the Spanish conquerors were not gods, the prophecies of great destruction coming from the east would prove to be a reality.

-next page-