“…On some claims that I accepted in 1980 because they were part of standard story, I am now much more sceptical, notably those concerning the roles of Eudoxus and Hipparchus for, in both cases, their contributions are only known from later sources that are susceptible to various interpretations and whose reliability is often dubious (Bowen and Goldstein, 1991; Goldstein and Bowen, 1983; 1991). A detailed discussion of these matters would now require a monograph.…”