A country meant to show what a stifled mesoamerican culture would be like. Very secretive, very separatist, wanting no part in anybody else's wars or politics. Excellent at exporting exotic goods, though, such as wild animals, gold, sugar cane, and chocolate. A bit primitive-seeming to the rest of the world. Still practice a form of slavery (indentured service) perhaps? Working on details, will elaborate more later.
Relatively small, but impressive.