The Toltec Empire, Toltec Kingdom or Altepetl Tollan was a political entity in modern Mexico. It existed through the classic and post-classic periods of Mesoamerican chronology, but gained most of its power in the post-classic. During this time its sphere of influence reached as far away as the Yucatan Peninsula. The capital city of this empire was Tollan-Xicocotitlan, while other important cities included Tulancingo and Huapalcalco. Oral traditions about the origin of Toltecs were collected by historians like Mariano de Veytia and Carlos María de Bustamante in the early 19th century. According to said accounts, there was a city named Tlachicatzin in a country ruled by the city of Huehuetlapallan, whose inhabitants called the people of Tlachicatzin "Toltecah", for their fame as dexterous artisans. In 583, led by two notables named Chalcaltzin and Tlacamihtzin, the Toltecah rebelled against their overlords in Huehuetlapallan and after thirteen years of resistance they ended up fleeing Tlachicatzin. Some of the Toltecah later founded a new settlement called Tlapallanconco in 604. These narrations about the origin of the Toltecs have been disputed by archaeologists and historians like Manuel Gamio, Enrique Florescano and Laurette Séjourné; who had identified the Toltec city of Tollan with Teotihuacan, although this hypothesis has been criticized by many scholars, most notably historian Miguel León-Portilla. According to the Anales de Cuauhtitlan, the Toltec people came to be in the year 1-rabbit (674), the year they set up a theocracy to govern themselves, which was later reformed into a monarchy around the year 700 with the enthronement of Mimixcoamazatzin. (Some authors such as John Bierhorst have translated the Anales de Cuauhtitlan as stating that the Toltecs arrived in Tula in 726 and created their monarchy in 752). The dynastic history of the Toltecs was recorded by several pre-Columbian and Colonial sources, although there are contradictions in most of them.