Out of the gritty industrial landscape of Birmingham, England, Black Sabbath emerged in 1968 as a force that would permanently alter the course of rock music. Guitarist Tony Iommi, bassist Geezer Butler, drummer Bill Ward, and vocalist Ozzy Osbourne formed a unit that traded blues-rock convention for something far heavier and more sinister. Iommi's down-tuned, riff-driven guitar work — partly shaped by a factory accident that claimed the tips of two fingers — gave the band a thick, dark sound that nobody had quite heard before.
Their early albums, particularly the self-titled debut and Paranoid, both released in 1970, essentially invented heavy metal as a genre. Songs like Iron Man, War Pigs, and Black Sabbath laid down a blueprint that countless bands have spent decades trying to replicate. The band continued evolving through the 70s and beyond, surviving lineup changes, Ozzy's departure and eventual replacement by Ronnie James Dio, and the inevitable commercial pressures of rock stardom.
The cultural impact of Black Sabbath is genuinely hard to overstate. They influenced everything from doom metal and stoner rock to grunge and beyond. Even artists who'd never claim them as an influence are playing in a world they helped create. Their 2017 farewell tour finally closed the book on one of rock's most essential and enduring stories.