 Another element that influenced his first studies as archaeologist, was that during his childhood he spent many days exploring the old ruins of Teotihuacan, years before its reconstruction.Actually, Pareyón Moreno's father, colonel Eduardo Pareyón Azpeitia, was a friend of Manuel Gamio, whose work and personality had an impact during his first cultural development.He returned to study at the National School of Anthropology, where he completed his master dissertation "Excavations at the archaeologic zone of Cerro del Tepalcate" (1961).