The specialists reviewed the Monte Verde collections, geology, stratigraphy and chronology before reaching a consensus that Monte Verde "is a bona fide site" (Bonnichsen and Schneider 197).'A team claims to have found 22,000-year-old stone tools at a site in Brazil, though other archaeologists are disputing the claim.Some tools were buried 22,000 years ago thousands of years earlier than any known human colonisation of the Americas'.

One of the most significant realisations from Meso-American archaeology is that several well-formed civilisations appear to have risen to greatness, only to disappear seemingly overnight from historical record.

This same cycle of the 'rise-and-fall' of civilisations can be seen to be repeated around the ancient world, making it one of the most pertinent questions of prehistory, and one which perhaps deserves more debate in this time of global angst. 1,500 BC - 400 BC) - The Olmecs were one of the first proper civilisations in Mesoamerica.

P., associated with stones not yet shown to be artifactual (Roosevelt, et. Their on-site visit focused on depositional circumstances, confirmation of stratigraphy, validation of depositional context, anthropogenic reality of alleged living structures, and potential sources of carbon contamination at or near the site (Adovasio and Pedler 197).

All the specialists agreed that there were indisputable human artifacts in a primary depositional context mantled by a peat layer and without indication of materials deriving from later depositional horizons at the site (Adovasio and Pedler 198).

There is no question that the Americas were populated for a long time before Columbus' arrival in 1492.

The focus of debate today is centred on suggestions that the Americas had been colonised by people from what is generically termed the 'old-world'. Between 19, at El Cedral, San Luis Potosi, Mexico, excavation of a spring with an abundance of faunal remains produced, from a stratum dated to 33,300 2700 years B.

The Mayan culture is noted for having the only full written language in Pre-Columbian America., as well as being highly skilled in astronomy, mathematics, and for their uniquely imaginative art.

The Mayan peoples never disappeared, and today their descendants still form sizeable populations in the Mayan lowlands, living with a mixture of Pre and Post Columbian ideas. 1,200 AD - 1,520 AD) The Incas were the largest and the last of a complex of Andean civilisations formed primarily from the ancient Tiahuanacan and Peruvian cultures.

According to the oral histories of many of the indigenous peoples of the Americas, they had been living on this continent since their genesis, as described by a wide range of traditional creation stories.