What is the significance of Murder in the Cathedral as a play?

Although T.S. Eliot wrote Murder in the Cathedral as a verse drama, which portrayed the murder of Archbishop Thomas Becket in Canterbury Cathedral in 1170, the significance of the play is its protest of the Nazi regime's suberversion of Christian beliefs.

Based heavily on the writings of Edward Grim (Becket's clerk), the play portrays an individual's opposition to authority, and the subject matter had a direct correlation to the rising Facism in Central Europe.