 Arnold Wesker and Nell Dunn also brought social concerns to the stage.Again in the 1950s, the absurdist play "Waiting for Godot" (1955) (originally "En attendant Godot", 1952), by Irish writer Samuel Beckett profoundly affected British drama.The Theatre of the Absurd influenced Harold Pinter (born 1930), author of (The Birthday Party, 1958), whose works are often characterised by menace or claustrophobia.