About the year 200 of the Christian aera, Irenaeus and Hippolytus refuted the thirty-two sects, which had multiplied to fourscore in the time of Epiphanius, (Phot. Biblioth. cod. cxx. cxxi. cxxii.) The five books of Irenaeus exist only in barbarous Latin; but the original might perhaps be found in some monastery of Greece.