 Labels for movements can be arbitrary and misleading, but several of the authors cited by Arabatzis have been identified with a movement usually called “historical epistemology”, the goal of which is to combine excellent history of science with philosophical sophistication or excellent philosophy with more historical sophistication than is usually found in case-studies approaches. Given the epistemological focus, here is where we might expect to find the greater concentration of work relevant to questions of scientific rationality. The epicenter of the movement is the Max Planck Institute for the History of Science in Berlin, whose directors over the years, Lorenz Krüger (who died before he could assume the post), Lorraine Daston, Hans-Jörg Rheinberger, and Jürgen Renn, have promoted historical epistemology. A recent, special issue of Erkenntnis (Sturm &amp; Feest (eds.) 2011) on historical epistemology derives from a conference at the Institute. In their introductory essay to the special issue, the co-editors, Uljana Feest and Thomas Sturm, ask “What (Good) is Historical Epistemology?” (Feest &amp; Sturm 2011). The special issue includes a baker’s dozen authors who develop and/or critique various approaches to historical epistemology. The participants range from older hands such as Philip Kitcher, Michael Friedman, and Mary Tiles to more recent contributors such as Jutta Schickore and Feest. (See Tiles &amp; Tiles 1993 for an early philosophical introduction to the field.)