George Bernard Shaw and "Caesar and Cleopatra", Shaw's counterblast to Shakespeare's "Antony and Cleopatra", seen in New York in 1906 and in London the following year. Now prosperous and established, Shaw experimented with unorthodox theatrical forms described by his biographer Stanley Weintraub as "discussion drama" and "serious farce". These plays included "Getting Married" (premiered 1908), "The Shewing-Up of Blanco Posnet" (1909), "Misalliance" (1910), and "Fanny's First Play" (1911). "Blanco Posnet" was banned on religious grounds by the Lord Chamberlain (the official theatre censor in England), and was produced instead in Dublin; it filled the Abbey Theatre to capacity. "Fanny's First Play", a comedy
Mary Devenport O'Neill Colum, W. B. Yeats, Richard Irvine Best, Frank O'Connor, Francis Stuart and Iseult Gonne. She became particularly close to Yeats, who she confided in. Yeats' recorded their weekly consultations in his diary while O'Neill was writing "A vision" (1925). In his "Oxford anthology of English verse" from 1936, he included one of O'Neill's poems. In 1917, she contributed lyrics to her husband's play "The kingdom maker". She published her only book in 1929, "Prometheus and other poems". After this she occasionally contributed primarily modernist plays and poetry to "The Dublin Magazine", "The Irish Times" and "The Bell". O'Neill collaborated with