Mayan languages system developed by the Academia de Lenguas Mayas de Guatemala (ALMG). Orthographies for the languages of Mexico are currently being developed by the Instituto Nacional de Lenguas Indígenas (INALI). The pre-Columbian Maya civilization developed and used an intricate and fully functional writing system, which is the only Mesoamerican script that can be said to be almost fully deciphered. Earlier-established civilizations to the west and north of the Maya homelands that also had scripts recorded in surviving inscriptions include the Zapotec, Olmec, and the Zoque-speaking peoples of the southern Veracruz and western Chiapas area—but their scripts are as yet largely undeciphered.
Olmec colossal heads heads are the earliest known stone monuments from the site. The discovery of one of the Tres Zapotes heads in the nineteenth century led to the first archaeological investigations of Olmec culture, carried out by Matthew Stirling in 1938. Tres Zapotes Monument A (also known as Tres Zapotes Colossal Head 1) was the first colossal head to be found, discovered by accident in the middle of the nineteenth century, to the north of the modern village of Tres Zapotes. After its discovery it remained half-buried until it was excavated by Matthew Stirling in 1939. At some point it was moved