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.
Waiting for Godot "Catullus" in the first Faber edition. This became "Adam" in the American edition. Beckett's only explanation was that he was "fed up with Catullus". Vivian Mercier described "Waiting for Godot" as a play which "has achieved a theoretical impossibility—a play in which nothing happens, that yet keeps audiences glued to their seats. What's more, since the second act is a subtly different reprise of the first, he has written a play in which nothing happens, twice." Mercier once questioned Beckett on the language used by the pair: "It seemed to me...he made Didi and Gogo sound as if they had