The band helped define the genre with releases such as Black Sabbath (1970), Paranoid (1970) and Master of Reality (1971).
Signing to Philips Records in November 1969, they released their first single, "Evil Woman" in January 1970.
In 1991, Iommi and Butler rejoined Dio and drummer Vinny Appice to record Dehumanizer (1992).
The original line-up reunited with Osbourne in 1997 and released a live album Reunion.
and made the decision to focus on writing similar material, in an attempt to create the musical equivalent of horror films.
and released their first single, "Evil Woman" (a cover of a song by the band Crow), recorded at Trident Studios, through Philips subsidiary Fontana Records in January 1970.