Etruscan religion comprises a set of stories, beliefs, and religious practices of the Etruscan civilization, heavily influenced by the mythology of ancient Greece, and sharing similarities with concurrent Roman mythology and religion. As the Etruscan civilization was gradually assimilated into the Roman Republic from the 4th century BC, the Etruscan religion and mythology were partially incorporated into ancient Roman culture, following the Roman tendency to absorb some of the local gods and customs of conquered lands. The first attestations of an Etruscan religion can be traced back to the Villanovan culture.