People were brought to this planet by Omeyocans to be free from Goa'uld rule. They used the Crystal skull to visit Earth and partake in commerce. This continued until one day the Aztecs came through crystal skull. They took over shipments and the capital Picari. People could not use the crystal skull to get help from other worlds. Coatlicue then arrived in her spaceship and brought with her a Stargate. The people did not know about warfare or how the Goa'uld fought, but they knew about advanced biotechnology, knowledge they would use as weapons.