Mona Domosh is the Joan P. and Edward J. Foley Jr. 1933 Professor of Geography at Dartmouth College. Recent publications include 'Historical geographies of, and for, the present', Progress in Human Geography 44, 2020, 168-188, with Levi Van Sant, Elizabeth Hennessy, Mohammed Rafi Arefin, Nathan McClintock, and Sharlene Mollett, and 'Race, biopolitics, and liberal development from the Jim Crow South to postwar Africa', Transactions of the Institute of British Geographers 43, 2018, 312-324. Michael Heffernan is Professor of Historical Geography at the University of Nottingham. Recent publications include Geographies of the University (Springer 2018), coedited with Peter Meusburger and Laura Suarsana, and Locating Internationalism: International Conferences and the Making of the Modern World (Cambridge University Press, 2020), coedited with Stephen Legg, Jake Hodder and Benjamin Thorpe. Charles W. J. Withers is Emeritus Professor of Historical Geography at the University of Edinburgh and Geographer Royal for Scotland. Recent publications include Zero Degrees: Geographies of the Prime Meridian (Harvard University Press, 2017) and, coedited with Robert Mayhew, Geographies of Knowledge: Science, Scale, and Spatiality in the Nineteenth Century (Johns Hopkins University Press, 2020).