• Oliver Byrne's edition of 1847
  • David Joyce's Java edition of Euclid

  • Elizabeth Tuttle's wonderful guide to reading Euclid in Greek
  • The Perseus project's Greek text of Euclid
  • The Perseus project's collection of Heath's comments from his English edition of Euclid
  • The integrated text (Byrne, Joyce, and Heath) at UBC
    • Introduction
    • Book I
    • Book II
    • Book III
    • Book IV
    • Book V
    • Book VI
    • Book VII
    • Book VIII
    • Book IX
    • Book X
    • Book XI
    • Book XII
    • Book XIII
  • A local collection of proofs of Pythagoras' Theorem in Java





  • A Latin dictionary (Lewis & Short, at Perseus) to use while reading some of the material on this site
  • A precursor - YBC 7289
  • The Oxyrhynchus papyrus with the diagram for II.5
  • The Clay Mathematics Institute history project , including images of the Bodleian Library's d'Orville MS (888 A.D.), the oldest extant copy of the Elements.
  • Euclid in the Middle Ages, including a complete copy of a survey article and a list of extant manuscripts by Dr. Menso Folkerts.
  • On Erhard Ratdolt, publisher of the 1482 edition of Euclid (the very first, based on the somewhat faulty medieval edition produced by Campanus)

  • Images from Ratdolt's edition
  • Images from the first English edition of 1582
  • Selections from Sir Charles Thomas-Stanford's commentary on editions of Euclid
  • Ralph Abraham's Visual elements
  • The Euclid collection at University College, London