The Oxford Handbook of World History presents thirty-three essays by leading historians in their respective fields. The chapters address the most important issues explored by contemporary world historians. These broadly fall into four categories: conceptions of the global past, themes in world history, processes of world history, regions in world history. Those chapters on conceptions deal with issues of space and time as treated in the field of world history as well as questions of method, epistemology, the historiography of the area, and globalization as viewed from historical perspective. Themes present in the book include the natural environment, agriculture, pastoral nomadism, science, technology, state formation, gender, and religion. Chapters dealing with large-scale processes review current thinking on some of the most influential developments of the global past, including mass migrations, cross-cultural trade, biological diffusions, imperial expansion, industrialization, and