Navigating World History: Historians Create a Global Past - Hardcoverby P. Manning (Author) World history has expanded dramatically in recent years, primarily as a teaching field, and increasingly as a research field. Growing numbers of teachers and Ph. Ds in history are required to teach the subject. They must be current on topics from human evolution to industrial development in Song dynasty China to today's disease patterns and then link these disparate topics into a coherent course. Numerous textbooks in print and