Master of Arts in History, Utrecht University, 1988. Doctor of Philosophy in History:Dutch republicanism (late 18th century revolution), Utrecht University, 1995.
Researcher heritage education and history teaching Center History Culture, Erasmus University, Rotterdam. History & social science teacher St. Maartenscoll., 1996—2003. History teacher educator and researcher history teaching ICLON-Graduate School Teaching, Leiden University, since 2002.