Uncertainty about composition-dates and authorship of the early chronicle plays makes it difficult to attribute influence or give credit for initiating the genre. Some critics believe that Shakespeare has a fair claim to have been the innovator. In 1944 E. M. W. Tillyard argued that "The Famous Victories of Henry the Fifth", c. 1586–87, could have been a work of Shakespeare's apprenticeship, a claim developed by Seymour Pitcher in 1961. Pitcher argued that annotations to a copy Edward Hall's "Union of the Two Noble and Illustre Families of Lancastre and Yorke" that was discovered in 1940 (the volume is now in the British Library) were probably written by Shakespeare and that these are very close to passages in the play. Again, W. J. Courthope (1905), E. B. Everitt (1965) and Eric Sams (1995) argued that "The Troublesome Reign of King John", c. 1588–89, was Shakespeare's early version of the play later rewritten as "The Life and Death of King John" (the Second Quarto, 1611, had attributed "The Troublesome Reign" to "W.Sh."). Sams called "The Troublesome Reign" "the first modern history play". Everitt and Sams also believed that two early chronicle plays based on Holinshed and dramatizing 11th century English history, "Edmund Ironside, or War Hath Made All Friends", written c. 1588–89, and its lost sequel "Hardicanute", performed in the 1590s, were by Shakespeare. A rival claimant to be the first English chronicle play is "The True Tragedie of Richard the Third", of unknown authorship from the same period. In practice, however, playwrights were both 'influencers' and influenced: Shakespeare's two "Contention" plays (1589–90), influenced by Marlowe's "Tamburlaine" (1587), in turn influenced Marlowe's "Edward II", which itself influenced Shakespeare's "Richard II".