Steffen Rimner holds a Ph.D. in History from Harvard University (2014). He is currently a Postdoctoral Fellow at International Security Studies at Yale University. 

After an immersion in the history of nineteenth- and twentieth-century China, Japan, European imperialism and transnational relations, he specialized in international and global history. His dissertation was supervised by Professors Erez Manela, Charles S. Maier and Akira Iriye. 

Under contract with Harvard University Press, his first book is based on archival research in six languages and eleven countries across East Asia, Southeast Asia, Western Europe and North America. It explores the social, ideological, economic and political origins of global narcotics control in transnational perspective, from protests against the Asian opium trade to the League of Nations. 

His broader interests traverse the transnational histories of Asians overseas, the relations among European and Asian imperial powers, international public opinion, international public health, the movements of international ideologies, the training in and practice of international law, the transition from multi-imperial to multilateral relations, the past and present of international organizations of global governance from the League of Nations to the United Nations, and international civil society in its interaction with world politics. 

At Harvard, he was the John Clive Fellow and affiliated with the Weatherhead Center for International Affairs from 2010 to 2013, as a Graduate Student Associate, a Canada Research Fellow and a member of the Executive Committee. He has also been supported by the Andrew W. Mellon Foundation, Columbia University, the Fairbank Center for Chinese Studies, the Reischauer Institute of Japanese Studies, the Harvard University Asia Center, the Harvard Committee on Australian Studies, the Jens Aubrey Westengard Fund and the Department of History at Harvard, among others. In 2013-14, he has been a SIAS fellow at the Wissenschaftskolleg zu Berlin and the National Humanities Center in North Carolina.