Irish theatre playwright now stands outside the gallery entrance. He won the Nobel Prize for Literature in 1925. A sea change in the history of the Irish theatre came with the establishment in Dublin in 1899 of the Irish Literary Theatre by W. B. Yeats, Lady Gregory, George Moore and Edward Martyn. This was followed by the Irish National Theatre Society, later to become the Abbey Theatre. The history of this theatre is well documented, and its importance can be seen from the list of writers whose plays were first performed here in the early days of the 20th century. These included
George Bernard Shaw Osborne's plays, and concludes that though the latter's work is neither imitative nor derivative, these affinities are sufficient to classify Osborne as an inheritor of Shaw. In a 1983 study, R. J. Kaufmann suggests that Shaw was a key forerunner—"godfather, if not actually finicky paterfamilias"—of the Theatre of the Absurd. Two further aspects of Shaw's theatrical legacy are noted by Crawford: his opposition to stage censorship, which was finally ended in 1968, and his efforts which extended over many years to establish a National Theatre. Shaw's short 1910 play "The Dark Lady of the Sonnets", in which Shakespeare pleads with