The distinguished Africanist Robert Harms once observed that “we historians are a practical people who pride ourselves on our attention to facts and our painstaking attention to detail.” If this is the case in other parts of the world, it is certainly true of American historians, who have been periodically admonished for their disinterest in questions of theory and purpose related to their craft. In this issue we have an opportunity to discuss the question of theory as it may pertain to the history of education, with particular attention to the United States. Regardless of whether one believes that historians should be ardent students of social theory, after all, there is little question about whether they should be cognizant of it. Indeed, there is danger in ignoring it. Quoting John Maynard Keynes, Harms suggested that practical people who feel “exempt from any intellectual influences” run the risk of “becoming slaves to some defunct economist.”