• Cobain, Krist Novoselic, and Dave Grohl, all in their early-to-mid 20s, had left independent label Sub Pop and signed to DGC Records, a subsidiary of major label Geffen Records.
• Sub Pop was almost entirely responsible for the grunge sound of sludgy and detuned guitars, with darkly neurotic lyrics.
• Moving to a major was grounds for "public hanging," where any push for commerciality was seen as selling out. But Nirvana wanted to break out and strive for broader recognition.
• The frame of Nevermind's 12 tracks were recorded in a week. Nevermind joined the central tenents of the grunge sound - crunching guitars and loud vocals - with memorable tunes.
• In covering the dual bases of noise and melody, Nevermind ensured Nirvana had crossover appeal to young and old, fans of punk and folk alike.
• "Nevermind" sold a million copies in the US alone. The alternative was now mainstream.

The success of Nevermind album can be partly attributed to Geffen's money and MTV patronage.

"Nevermind" also tapped into a new, less showy way of doing things. People, it seemed, were tired of the classic rock loved by the baby boomer generation. Nevermind gave many bands the confidence to give it a go, even if they lacked the best equipment. It took music back to the garage. Nevermind made misfits feel normal.

"Nevermind" is an era-defining album with a timeless appeal.

• Nevermind spent 302 weeks in the UK to 100.
• It was number five in 2011 following a 20th-anniversary re-issue.
• Recent research found it is the third most-streamed album ever, with 122 million global streams.

The look that changed fashion:

• In 2014, Vogue called Cobain "one of the most influential style icons of our time. His thrift-store look is still everywhere today.
• Nirvana T-shirts are increasingly worn by teenagers, even though they would struggle to name a single Nirvana song.