What was the inspiration for much of the experimentation with theatrical forms and techniques from 1945 to 1975 and specifically ""theatre of the absurd?""

Theater in the 20th century continues with the 19th century "theme" of realism and Naturalism, but experimental theater gained immense popularity and dominating this century theater "theme". Experimental theater used modernist, postmodernist movements, and political theater aesthetics as inspiration. Such theaters was the Theater of the Absurd.

The Theater of the Absurd drew inspiration from existentialism as an idea as a form of experimental theater, playwrights of numerous Theater of the Absurd used techniques from trailblazers who came before them. This experimental theater came right in time post World War II.