Black Sabbath created heavy metal, no doubt.
"Black Sabbath is and always will be synonymous with heavy metal. Sabbath got me started on all that evil-sounding shit, and it's stuck with me. Tony Iommi is the king of the heavy riff." - James Hetfield.
Enjoy this great vids on the story of Black Sabbath. The web is full of different ones, but this one´s a really great one.
"Nearly 40 years of drugs, depression, booze, the Beast, and paranoia are laid out in unflinching detail in this journey into the wicked world of Black Sabbath. With numerous albums that are routinely on "best of" lists, an influence on contemporary acts that cannot be overstated, and an original lineup—fronted by the infamously addled Ozzy Osbourne—that continues to tour, Black Sabbath still fills coliseums and amphitheaters all over the world. Through rare and previously unpublished interviews, documents, and artifacts spanning the band's entire career, readers get an all-access pass to Sabbath's manic history, from bat-biting to rehab. The book contains new and never-before-seen photos and conversations that shed more light on metal's dark forefathers. Every album is cataloged, every song pored over, and every tour deconstructed—making this headlong rush down metal-memory lane the definitive reference to the band."
- From Martin Popoffs "Black Sabbath: Doom Let Loose: An Illustrated History".