Diplomatic dropped from 5 to 3 percent, economic history dropped from 7 to 5 percent, and cultural history grew from 14 to 16 percent. Based on the number of full-time professors in U.S. history departments. Stephen H. Haber, David M. Kennedy, and Stephen D. Krasner, "Brothers under the Skin: Diplomatic History and International Relations", International Security, Vol. 22, No. 1 (Summer, 1997), pp. 34–43 at p. 42 online at JSTOR
David Glassberg, "Public history and the study of memory." The Public Historian 18.2 (1996): 7-23 online.
