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
Samuel Beckett Days" (1961). These plays—which are often considered, rightly or wrongly, to have been instrumental in the so-called "Theatre of the Absurd"—deal in a darkly humorous way with themes similar to those of the roughly contemporary existentialist thinkers. The term "Theatre of the Absurd" was coined by Martin Esslin in a book of the same name; Beckett and "Godot" were centerpieces of the book. Esslin argued these plays were the fulfilment of Albert Camus's concept of "the absurd"; this is one reason Beckett is often falsely labeled as an existentialist (this is based on the assumption that Camus was an existentialist,