Archaeology and the Book of Mormon hand, flourished in Mesoamerica during the Preclassic period, dating from 1200 BC to about 400 BC. The Olmec civilization suddenly disintegrated for unknown reasons, although archaeological evidence clearly indicates a definite Olmec influence within the Maya civilization that followed. Although the Olmec civilization ended, there are indications that some of the Olmec people survived and interacted with other cultures. While making allowance for the likelihood that Book of Mormon peoples migrated to Mexico and Central America, Joseph Smith nevertheless placed the arrival of the Jaredites in "the lake country of America", i.e., the region of the Great Lakes). No Central
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.