Between which dates was Metallica's 1991 album Metallica, known as The Black Album, recorded?

Metallica's 1991 album Metallica, known as The Black Album, was recorded between October 6, 1990, and June 16, 1991.

The sessions lasted roughly eight months and included work at several studios. The principal recording location was One on One Recording Studios in Los Angeles, with a shorter period at Little Mountain Sound Studios in Vancouver. Additional overdubs and mixing took place at A&M Studios in Hollywood.

Song ideas had been developed before the main sessions. Four demos—“Enter Sandman,” “The Unforgiven,” “Nothing Else Matters,” and “Wherever I May Roam”—were recorded on August 13, 1990, before the album's listed recording period began.

The album was released less than two months after the recording end date. Its production schedule was demanding partly because Bob Rock encouraged the band to rethink arrangements, performances, and recording methods.