PETER N. PEREGRINE is Associate Professor and Chair of the Department of Anthropology at Lawrence University in Appleton, Wisconsin. Dr. Peregrine received his Ph.D. in 1990 from Purdue University, where he did research on the late prehistoric Mississippian culture of the Midwestern United States. Dr. Peregrine has dedicated his career to teaching undergraduates and regularly teaches courses on archaeology, research methods, and human evolution. He has also conducted archaeological fieldwork in the United States and Syria trying to understand how and why complex societies evolve and collapse.