How did Nirvana change 1990?

In 1990, Nirvana emerged as a pivotal force in the music scene, helping to popularize the grunge genre and reshape the landscape of Rock Music. Their breakthrough album, "Nevermind," released in 1991, began to gain traction in late 1990, challenging the dominance of glam metal and pop-rock. The band's raw sound and introspective lyrics resonated with a disenchanted youth, leading to a cultural shift that emphasized authenticity over commercialism. This laid the groundwork for the alternative rock explosion of the early 1990s.