Krapp's Last Tape letter to Rosset's editorial assistant, Judith Schmidt, on 11 May 1959, Beckett referred to the "staging" of "Krapp's Last Tape" as its 'creation'," and he made numerous significant changes to the text over the years as he was involved in directing the play. The first German performance, on 28 September 1959, was directed by Walter Henn at Berlin's "Schillertheater", where 10 years later, on 5 October 1969, Samuel Beckett himself staged his text in a most successful performance (with Martin Held as Krapp). The first American performance, on 14 January 1960, was directed by Alan Schneider and starred Donald Davis.
Samuel Beckett of simplifying his style, a change also evidenced in "Watt". After World War II, Beckett turned definitively to the French language as a vehicle. It was this, together with the "revelation" experienced in his mother's room in Dublin—in which he realized that his art must be subjective and drawn wholly from his own inner world—that would result in the works for which Beckett is best remembered today. During the 15 years following the war, Beckett produced four major full-length stage plays: "En attendant Godot" (written 1948–1949; "Waiting for Godot"), "Fin de partie" (1955–1957; "Endgame"), "Krapp's Last Tape" (1958), and "Happy