New laser mapping technology finds Mayan civilization was much bigger

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Yeah the disappearance of the Mayan civilization is a very interesting archaeological mystery. It seems that the Mayan civilization had a number of waves of boom and decline, there seemed to be a major decline in the civilization around 200 CE from which they bounced back before the final end of the civilization in 900 CE. It could be anything from ecological changes, collapse of social structure, deforastation, etc. Keeping a civilization of that size relies on a tenuous balance of resources, especially prior to the development of modern agricultural techniques and international trade.

Like Unity100 mentioned, I don't know if the Mayans are the ones that Ra was referring to. For one thing Ra says that they and the other Confederation group came to us around 11,000 years ago, long before the Mayans. My personal suspicion is that they were referring to the civilization of Tiwanaku in the area of lake Titicaca (hehe).

That said I don't really know much of anything