My comments about witchcraft weren't based on history written by 'the winners' but on detailed historical research about the socio-economic background of the accusers and the accused.

The first study of this kind, Paul Boyer and Stephen Nissenbaum's "Salem Possessed: The Social Origins of Witchcraft", (Cambridge, Mass: Harvard University Press, 1974) on this and is still worth reading, though there have been many subsequent studies.

And as for lack of evidence, the same authors'"The Salem Witchcraft Papers: Verbatim Transcripts of the Legal Documents of the Salem Witchcraft Outbreak" (New York: Da Capo Press, 1977) provides a three volume transcript of the contemporary proceedings.