San Pedro Cholula is a municipality in the Mexican state of Puebla and one of two municipalities which made up the city of Cholula. The city has been divided into two sections since the pre Hispanic era, when revolting Toltec-Chichimecas pushed the formerly dominant Olmec-Xicallanca to the eastern side of the city in the 13th century. The new lords called themselves Cholutecas and built a new temple to Quetzalcoatl on the San Pedro side, which eventually eclipsed the formerly prominent Great Pyramid of Cholula, now on the San Andrés side. When the Spanish arrived in the 16th century, the city of Cholula was an important religious and economic center, but the center of power was on the San Pedro side, centered on what is now the main city plaza and the San Gabriel monastery. The division of the city persisted and San Pedro remained the more dominant, with Spanish families moving onto that side and the rest of the population quickly becoming mestizo. Today, San Pedro is still more commercial and less residential than neighboring San Andrés with most of its population employed in industry, commerce and services rather than agriculture.