akis, C. Rosenberg, M. Liberman, J. Sheidlower, B. Zimmer, R. Darnton, and A. Spector for discussions; to C- M. Hetrea and K. Sen for assistance with Encyclopaedia Britannica's database, to S. Eismann, W. Tre, and the City of Berlin website (berlin.de) for assistance documenting victims of Nazi censorship, to C.