Olmec heartland 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 became widespread over Mesoamerica from 1400 BCE until roughly 400 BCE. The area is also referred to as Olman or the
Mayan languages is the "Macro-Mayan" hypothesis, which posits links between Mayan, the Mixe–Zoque languages and the Totonacan languages, but more research is needed to support or disprove this hypothesis. In 2015, Campbell noted that recent evidence presented by David Mora-Marin makes the case for a relationship between Mayan and Mixe-Zoquean languages "much more plausible". The Mayan family consists of thirty languages. Typically, these languages are grouped into 5-6 major subgroups (Yucatean, Huastecan, Ch'olan-Tseltalan, Q'anjob'alan, Mamean, and K'ichean). The Mayan language family is extremely well documented, and its internal genealogical classification scheme is widely accepted and established, except for some minor unresolved differences.