Originally Posted by
SporeCc
That doesn't make sense. Also, you're wrong. Sabbath predated Zeppelin, as did the Yardbirds, who by training Page, Clapton and Beck, were also important in the development of heavier music. In addition, the distorted heavy sound of the Kinks back in '64 also predated Zeppelin. In case you didn't know, Zeppelin was mostly a blues rock band in their earlier days. They only started making truly heavy rock as we know it around Led Zeppelin III.
Way to be wrong. Ever heard of Communication Breakdown and Dazed and Confused? They were on I, which came out in 1969.