Between 1935, when "Murder in the Cathedral" was first produced at the Canterbury Festival, and 1958, when "The Elder Statesman" opened at the Edinburgh Festival prior to engagements in London and New York, T. S. Eliot had given three other plays to the theater. His paramount concerns can be traced through all five plays. They have been said to be closely related, marking stages in the development of a new and individual form of drama, in which the poet worked out his intention to take a form of entertainment, and subject it to the process that would leave it a form of art. What Mark Van Doren said, in reviewing "Murder in the Cathedral" in" The Nation," is true of all these plays: Mr. Eliot adapts himself to the stage with dignity, simplicity, and skill.