EDIT: Knew I heard this, check out this link. Apparently it's more Aztec than Maya but there is some overlap:
http://en.wikipedia.org/wiki/Quetzalcoatlscroll down to "Moctezuma controversy" and the idea that the king thought that Hernán Cortés was the god.
I really wish you would have posted this edit as a separate message. Many people might have read the original message in the hour or so between when you posted it and when you made the edit. And they would never know you had edited it. This is why the rules say no edits (other than for typos and the like) after more than a few minutes have passed.