Olmec heartland Olmec Metropolitan Zone. The major heartland sites are: Smaller sites include: Important heartland finds not associated with any archaeological site include: Olmec heartland The Olmec heartland is the southern portion of Mexico's Gulf Coast region between the Tuxtla mountains and the Olmec archaeological site of La Venta, extending roughly 80 km (50 mi) inland from the Gulf of Mexico coastline at its deepest. It is today, as it was during the height of the Olmec civilization, a tropical lowland forest environment, crossed by meandering rivers. Most researchers consider the Olmec heartland to be the home of the Olmec culture which
Mayan languages and a special word class of "positionals" which is typical of all Mayan languages. During the pre-Columbian era of Mesoamerican history, some Mayan languages were written in the logo-syllabic Maya script. Its use was particularly widespread during the Classic period of Maya civilization (c. 250–900). The surviving corpus of over 10,000 known individual Maya inscriptions on buildings, monuments, pottery and bark-paper codices, combined with the rich postcolonial literature in Mayan languages written in the Latin script, provides a basis for the modern understanding of pre-Columbian history unparalleled in the Americas. Mayan languages are the descendants of a proto-language called Proto-Mayan