Eugène Ionesco (born Eugen Ionescu, 26 November 1909 – 28 March 1994) was a Romanian-French playwright who wrote mostly in French, and was one of the foremost figures of the French avant-garde theatre in the 20th century. Ionesco instigated a revolution in ideas and techniques of drama, beginning with his "anti play", The Bald Soprano which contributed to the beginnings of what is known as the Theatre of the Absurd,