The ruins, as you can see, were impressive. They were built by the Totonaca in about 400 A.D. The Totonaca were there between 400 and 800 A.D. This same people built El Tajín and the world famous Pyramids of the Sun and the Moon of Teotihuacán at Mexico City. The Toltecs attacked Yohualichan in 800 and ruled there until about 1200 A.D. Then the Nahua overthrew the Toltec at this site. They still live there. Everyone in the town speaks Nahua and many also speak Spanish, especially the younger people.