Ken CurtisKenneth R. Curtis received his Ph.D. in African and comparative world history from the University of Wisconsin-Madison. His research focuses on colonial to postcolonial transitions in East Africa, with a particular focus on the coffee economy of Tanznia. He is a professor of history and liberal studies at California State University, Long Beach. He teaches world history at the introductory level, in special courses designed for future middle and high school teachers and in graduate seminars. He has worked to advance the teaching of world history at the collegiate and secondary levels in collaboration with the World History Association, the California History/Social Science Project and the College Board's Advanced Placement World History course. Read More Read Less