History
Elected 1998
History and politics of southern Africa, especially the rural Eastern Cape; environmental history and the politics of conservation
The history of the American Revolution and the Early American Republic, 18th and 19th centuries; slavery In North America, 17th-19th centuries; Thomas Jefferson and the Age of Jefferson
Social & intellectual history of experimental philosophy & exact sciences between the seventeenth & nineteenth centuries; historiography & sociology of scientific knowledge; the sciences & European imperialism