CUICUILCO ARCHAEOLOGICAL SITE.
Located between San Fernando Avenue and the beltway. Cuicuilco, which in Náhuatl means “place for singing and dancing”, is the first Pre-Hispanic camp at the south of the Mexican valley. This culture has left a round pyramid in the archaeological site located in the beltway’s square. South of Insurgentes Avenue there are traces of other pyramids in the area corresponding to the Olympic Village Sports Center. In 1922, Manuel Gamio, pioneer of the modern archaeology, together with the Americans Byron Cummings and Emil Haury, started working at the south of the Mexican valley, which had become known as the “Cultura de los cerros” (Culture of the hills). According to research, it is established that those findings correspond to a late Pre-Classic, which makes this contemporary culture to Ticomán III and Teotihuacán I. People say that when Cuicuilco was destroyed by the lava of the Xitle volcano, it meant the beginning of Teotihuacán. According to some archaeological pieces, Cuicuilco is the home of a group that was probably of Otomí origin, and they developed the local architecture and irrigation techniques. Afterwards, the place started to grow, and some civic ceremonial constructions were set, which can been seen from inside the pyramid. Later, there was a social difference, and then it finally became a social and political center, probably the most important of the area.