Later civilizations saw them as a symbol of kingship, art, religion, and sacred knowledge. They were also tied to Quetzalcoatl, the feathered serpent, one of the most important figures in Mesoamerican religion. In later traditions, Quetzalcoatl was connected to Tula as a priest king whose story blended history and myth. He was said to have been driven into exile and disappeared toward the east. Some stories say he crossed the sea, others say he burned himself and became the morning star. The people of central Mexico measured time differently than we do today. Time moved in cycles. One calendar followed the solar year, another followed a sacred cycle of 260 days. And every 52 years, the two calendars aligned and that moment was considered dangerous. The world might continue, or it might end. At the end of the cycle, fires were put out across the cities, homes and temples went dark, families waited without light, while priests prepared the new fire ceremony. At the Hill of the Star near Kulvakan, a captive was laid on his back, his chest was opened, his heart was removed, and a priest used a wooden fire drill to create a new flame over the wound. If the flame caught, the cycle had been renewed. Torches carried the new fire back into the city, temples were relit, and life could begin again. By the 1100 Zaydi, Tula began to weaken. A major Anjured drought struck central Mexico, parts of the city showed signs of burning and destruction, buildings were abandoned, and political power broke apart. While rival city-states competed for power after the fall of Tula, another people were moving south toward the valley of Mexico. They were the Mexica. According to their traditions, they had come from a place called Aztlan. Its exact location is unknown, but later pictorial histories showed them leaving their homeland under the guidance of their god, Huitzilopochtli. By the time the Mexica reached the Valley of Mexico, the region was already crowded. Older city-states controlled the lakes, farmlands, trade routes, and temples, so survival meant service. They became soldiers for stronger rulers, fought in other people's wars, and accepted land that more powerful groups did not want. By the late 1200s, the Mexica had settled at Chapultepec on the western side of Lake Texcoco. The hill had springs land in a strong position near the water, and other powers did not want these armed outsiders controlling such an important location. In 1299, a coalition attacked the Mexica and drove them out. Some leaders were captured while others fled. Kulwakan then allowed the Mexica to settle at Tezapapen. It was rough land remembered as a place filled with snakes, but it gave them a place to survive. The Mexica