Robert Haug, University of Cincinnati (image) University of Cincinnati Caption UC historian Robert Haug holds a late eighth-century coin from Baghdad. Medieval coins from Central Asia and the Middle East chronicle political, cultural and social shifts as Islam took root over several centuries. Credit Dottie Stover, University of Cincinnati Usage Restrictions None 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.