Abstract

This paper, based on some historical sources of the IV and the V century, aims to examine the existence of a fundamentalist Christian community, separated from the Catholics, in Sardinia, between 362 AD and the last decades of the IV century. After his years of exile, the bishop Lucifer returned to his diocese and made the Church of Rome community of Cagliari the symbol of the firm resistance by the intransigent anti-Arians to the conciliatory politics of the rest of the Church towards Arianism. Nevertheless, this separation cannot be recognized as a schism from the Church; it was a voluntary isolation encouraged by Lucifer and perpetuated by his successors.