Indigenous languages of the Americas languages are among those used today. Mayan languages are spoken by at least 6 million indigenous Maya, primarily in Guatemala, Mexico, Belize and Honduras. In 1996, Guatemala formally recognized 21 Mayan languages by name, and Mexico recognizes eight more. The Mayan language family is one of the best documented and most studied in the Americas. Modern Mayan languages descend from Proto-Mayan, a language thought to have been spoken at least 4,000 years ago; it has been partially reconstructed using the comparative method. Although both North and Central America are very diverse areas, South America has a linguistic diversity rivalled by
Mayan languages from that branch at a much later date than proposed by Kaufman. In the Archaic period (before 2000 BCE), a number of loanwords from Mixe–Zoquean languages seem to have entered the proto-Mayan language. This has led to hypotheses that the early Maya were dominated by speakers of Mixe–Zoquean languages, possibly the Olmec. In the case of the Xincan and Lencan languages, on the other hand, Mayan languages are more often the source than the receiver of loanwords. Mayan language specialists such as Campbell believe this suggests a period of intense contact between Maya and the Lencan and Xinca people, possibly