Professor emeritus of history, Department of American Studies, Eötvös Loránd University, Budapest. Member of the Hungarian Academy of Sciences and Chairman of its History Commission, editor of Századok, journal of the Hungarian Historical Society, Chairman of the Board of the Hungarian-American Fulbright Commission. Fulbright visiting professor, University of California, Santa Barbara and UCLA; NEH Distinguished Visiting Professor, University of Nevada-Reno; recurrent visiting professor, Columbia University, N.Y. Humboldt Forschungspreis, 2002; fellow, Royal Historical Society, 2006. Author: From Habsburg Agent to Victorian Scholar: G. G. Zerffi 1820—1892 (2000); Picturing Austria-Hungary: The British Perception of the Habsburg Monarchy 1865—1870 (2005); Double Exile: Migrations of Jewish-Hungarian Professionals through Germany to the United States 1919–1945 (2009). Coed. with Frank Hadler: Disputed Territories and Shared Pasts: Overlapping National Histories in Modern Europe (2011).