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
Criticism of The Church of Jesus Christ of Latter-day Saints c. 589 BC. After the translation was complete, Smith said he returned the golden plates to the Angel Moroni. A contemporary Mormon view is that these Israelite civilizations rose and fell in Mesoamerica. Civilizations of their magnitude and duration would be expected to leave extensive archaeological records. Several Mesoamerican civilizations did exist in the time period covered by the Book of Mormon, including the Olmec, Zapotec and Maya. The Olmec and Zapotec civilizations developed a writing system that may have served as the model for the later Mayan writing system, which became highly developed. The Maya developed a complex calendar