Salado Polychrome Ceramic Bowl (image) University of Arizona Caption Researchers analyzed thousands of artifacts like this Salado polychrome ceramic bowl to learn about social networks in the pre-Hispanic Southwest between A.D. 1200 and 1450. Credit University of Arizona Usage Restrictions This visual may only be used in conjunction with reporting/posting of this news release. Image/video credit must be included exactly as indicated. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.