Black Sabbath released Sabbath Bloody Sabbath on 1 December 1973.
The song "Sabbath Bloody Sabbath" has been singled out for praise by many hard rock and heavy metal guitar players, with Slash from Guns N' Roses stating to Guitar World in 2008, "The outro to 'Sabbath Bloody Sabbath' is the heaviest shit I have ever heard in my life.