"What about this lost City?" It may be in the jungle down there maybe in Chipas, maybe in Guatemala somewhere North of the old Mayan capital of Tikal, and somewhere north of the Usamancinta River. Rumors are that the lost city house the long lost "Golden Library"… The best story is about an American flyer forced down in the jungle between the Bay of Campeche and Salvador. He had climbed an overgrown mound or pyramid to get his bearings when the ground beneath suddenly gave way, and he plunged a down and centuries through time.

This presentation describes the Maya number system and places it in the historical context of the development of other number systems around the world.