Tolkien wrote at least four versions of the Oath of Fëanor itself, as found in "The History of Middle-earth." The three earliest versions are found in "The Lays of Beleriand": In alliterative verse (circa 1918–1920s), in chapter 2, "Poems Early Abandoned". "The Flight of the Noldoli from Valinor". Lines 132–141. In rhyming couplets (circa 1928), in chapter 3, "The Lay of Leithian". Canto VI, lines 1628–1643. In a different form as restated by Celegorm, third son of Fëanor, in chapter 3, "The Lay of Leithian." Canto VI, lines 1848–1857. A later version is found in "Morgoth's Ring".