Short answers, pulled from the story.
The band played under the name Nirvana for the first time on the 19th of March 1988 at Community World Theater in Tacoma, Washington. Kurt Cobain designed the concert flyer which mentioned all previous band names including Skid Row and Ted Ed Fred.
Local producer Jack Endino recorded the debut album Bleach with Nirvana during early 1989. Jason Everman supplied the five thousand dollars listed on the sleeve for recording sessions despite not playing on the album.
Nevermind displaced Michael Jackson's Dangerous at number one on the Billboard album charts in January 1992. The album eventually sold over seven million copies in the United States and over 30 million worldwide.
Kurt Cobain was found dead of a self-inflicted shotgun wound to the head at his home in the Denny-Blaine neighborhood of Seattle on the 8th of April 1994. He had died approximately three days earlier after escaping drug rehabilitation following hospitalization in Rome.
Courtney Love filed a suit to dissolve Nirvana LLC shortly before the scheduled October 2001 release date of the 45-track box set. An injunction prevented the release of any new material until the case settled in October 2002.