N'ọnwa Febụwarị afọ 1971, mgbe ha mechara otu egwu na Myponga Pop Festival n'Australia, Black Sabbath laghachiri n'ọmụmụ ihe iji bido ọrụ na album nke atọ ha. N'ịgbaso ihe ịga nke ọma nke Paranoid, e nyere ndị otu ahụ oge ọmụmụ ihe, yana "briefcase jupụtara na ego" iji zụta ọgwụ ọjọọ. "Anyị na-abanye na coke, nnukwu oge", ka Ward kọwara. "Uppers, downers, Quaaludes, ihe ọ bụla masịrị gị. Ọ ruru n'ọkwa ebe ị na-abịa n'echiche ma chefuo ha, n'ihi na ị nọghị na ya". Mmepụta ahụ mechara na Eprel 1971, na July, ìgwè ahụ wepụtara Master of Reality, naanị ọnwa isii mgbe US wepụtara Paranoid Bang. The album ruru n'elu iri na US na United Kingdom, na Black Sabbath natara asambodo na-erughị ọnwa abụọ, na-emesị nweta Platinum asambodo na 1980s na Double Platinum asambodo na mbido afọ 2003.
ọgwụ ọjọọ