According to one of them, Spaniards gave the name of Yucatán to the region, because the Mayan answered their questions with the phrase uh yu ka t'ann, which in the Maya language means hear how they talk. It is also said that it came from the answer of an indigenous Mayan to the question of a Spanish explorer, who wanted to know the name of the region. The Mayan probably replied Ma'anaatik ka t'ann which means in the Maya language I do not understand your speech or I do not understand you. Probably the first person to propose the "I do not understand" version was the friar Toribio de Benavente Motolinia. In his book Historia de los indios de la Nueva España (History of the Indians of New Spain) he says because talking with those Indians of the coast, whatever the Spanish asked the Indians responded: Tectetán, Tectetán which means I don't understand you, I don't understand you; they corrupted the word, and not understanding what the Indians said, they said: Yucatán is the name of this land; and the same happened in a place, a cape, which they also called Cape Cotoch; and Cotoch in that language means house. The second proposed explanation comes from Bernal Díaz del Castillo. In his book Historia verdadera de la conquista de la Nueva España (True History of the Conquest of New Spain), he says Yucatá means "land of yucas", a plant that was cultivated by the Maya and was an important food source for them. History Pre-Columbian era The origin of the first settlements has not been scientifically confirmed, although the presence of first humans in the area dates from the late Pleistocene or ice age (about 10,000–12,000 years), according to the findings in the Loltún caves and caverns of Tulum (Women of the Palms). The first Maya moved to the Peninsula circa 250 CE, from the Petén (today northern Guatemala), to settle the southeastern peninsula in the modern Bacalar, Quintana Roo. In 525, the Chanés (Mayan tribe that preceded the Itza), moved to the east of the peninsula, founding Chichén Itzá, Izamal, Motul, Ek' Balam, Ichcaanzihó (modern Mérida) and Champotón. Later, Tutul Xiúes, Toltec descent, who came from the coast of the Gulf of Mexico, settled in the region causing displacement of the Itza and Cocomes—a diversified branch of Itzá—and finally, after years and many battles, the League of Mayapan (composed