Religion was and continues to be a driving force in the globalizing world. It impacts political, social and economic spheres as well as the ecology of our planet.

This website is dedicated to my historical research on the nexus between religion and international relations. It focuses in particular on my work on early modern international relations and religion, and on my current research on the history of global mission and on the historical relationshop between religion and climate change.

Older missionary maps marked the territories that were dominated by Protestants (the focus of most of my work) habitually in blue, hence the title of this website: 


Interview on the missionary map exhibition we launched on the website of the Special Collections Department of the Library of Utrecht University:
Interview on New Books Network about the book I wrote with Gijs Rommelse, The Dutch in the Early Modern World: History of a Global Power (Cambridge University Press, 2019) on