  Before World War II there appeared nineteen reviews of Fleck’s book on the genesis and development of a scientific fact, most of them positive; yet only one was published in a philosophical journal, and the rest were published in medical or popular journals and newspapers. After WWII Fleck’s epistemology, in spite of all his efforts, was completely forgotten. Thomas S. Kuhn mentioned his book in the Preface to The Structure of Scientific Revolutions as “an essay that anticipated many of my own ideas” (Kuhn 1962, p. VII); but for at least fifteen years during fierce debates provoked by Kuhn’s book, nobody paid attention to this remark. It was only a paper by Wilhelm Baldamus (1977) and a book by his student Thomas Schnelle (1982) that awakened a broader interest in Fleck’s philosophy and sociology of science. Fleck’s book was republished in the German language in 1980. In 1979 its English translation Genesis and Development of a Scientific Fact appeared; and between 1986 and 1990 most of Fleck’s epistemological papers became available in English. Fleck’s book and articles was translated into Italian, Polish, Spain, Swedish, Russian, Ukrainian, Korean, French and Brazilian Portuguese.