The writing system of the Zapotec culture represents one of the earliest writing systems in Mesoamerica. Rising in the late Pre-Classic era after the decline of the Olmec civilization, the Zapotecs of present-day Oaxaca built an empire around Monte Albán. One characteristic of Monte Albán is the large number of carved stone monuments one encounters throughout the plaza. There and at other sites, archaeologists have found extended text in a glyphic script.