Considered to be one of the leading death metal bands to emerge from Poland in the 1990s, Behemoth has endured quite a few lineup shifts during their career (especially in the bass department), with founding singer/guitarist Nergal being the only constant member. Behemoth was formed during 1991 (originally as a trio), and began issuing several demos shortly thereafter. Two years later, the group released this their first full-length recording, which received favorable reviews by the metal underground press. Metalmind. 2005.