groups moving north, and archeological sites here show Teotihuacan influences. From the Classic Period, there were two population centers in this area called Toluquilla and Las Ranas. The mountain now known as El Cerrito was a ceremonial center, but was later abandoned for unknown reasons. In the later pre-Hispanic period, the area was populated by the Otomi, who had become sedentary urban dwellers with sophisticated politics by the time of the Aztec Empire, who referred to them as the Tlacetilli Otomi or "Otomi Nation/State" . This area was under control of the Otomi dominion of Xilotepeque in the 1440s, which in turn was subject to the Aztec Empire of Mexihco-Tenochtitlan. Under the reign of Ahuizotl in the late 15th century, the Aztecs administered the area directly, considering it a bulwark against the Chichimeca lands to the north. The Otomi were the most populous ethnicity in Xilotepec although there were other groups, primarily Chichimeca as well. These two groups are still found here today. During the pre-Hispanic and colonial times, the Otomi were organized into familial clan like groups with defined territories, living in stone, wood or adobe dwellings. They were sedentary farmers, who fought, but unlike the Aztecs, did not make warfare a large part of their culture. Foundation The foundation of the Spanish city of Santiago de Querétaro is pegged to 25 July 1531 when Spaniard Hernán Pérez Bocanegra y Córdoba arrived with the allied Otomi leader Conín (later named Hernando de Tapia) who was the administrative head of the Otomi peoples living in Aztec controlled territory. On this date, the Spanish and their Nahuan allies were battling the local insurgent Otomi and Chichimecas at a hill now known as Sangremal and which was called Ynlotepeque and considered sacred in pre-Hispanic times. Chronicles of this event, such as that written by Friar Isidro Félix de Espinoza, state that the Chichimeca were at the point of winning when a total eclipse of the sun occurred. This supposedly scared the Chichimeca and the Spanish claimed to have seen an image of Saint James (the patron saint of Spain) riding a white horse carrying a rose-colored cross. This event caused the Chichimeca to surrender. This event is why the city is called Santiago (Saint James) de Querétaro, with James as patron saint. A stone cross imitating the one the Spanish supposedly saw was erected on the hill, which later was accompanied by