Archaeological finds in the southern part of the western state of Sinaloa suggest that the culture that developed in that region gave rise to the ceramics at the Aztatlan Complex, Mexico's National Anthropology and History Institute, or INAH, said. More than 200 archaeological sites have been catalogued in the region that enable scientists to understand the dynamic of the human occupation of that region during the pre-Columbian epoch, said INAH in a communique. In contrast to the belief that only nomadic groups lived there, evidence has been found of various settlements dating back to about the year 250 A.D. On...