Employing previously unexamined archival material, Paige Reynolds reconstructs five large-scale public events in early 20th-century Irish culture: the riotous premiere of J. M. Synge's The Playboy of the Western World in 1907; the events of Dublin Suffrage Week, including the Irish premiere of Ibsen's Rosmersholm, in 1913; the funeral processions of the playwright and Lord Mayor of Cork Terence MacSwiney in 1920; the sporting and arts competitions of the Tailteann Games in 1924; and the organized protests accompanying the premiere of Sean O'Casey's The Plough and the Stars in 1926. The book provides attentive readings of the literature and theater famously produced in tandem with these events, as well as introducing surprising texts that made valuable contributions to Irish national theater. This detailed study revises pessimistic explanations of 20th-century mass politics and crowd dynamics by introducing a more sympathetic account of national communities and national sentiment.