A denomination which arose in the fourth century. They derived their name from Donatus, bishop of Numidia. They maintained that their community was alone to be considered as the true church, and avoided all communication with other churches, from an apprehension of contracting their impurity and corruption. Hence they pronounced the sacred rites and institutions void of all virtue and efficacy among those Christians who were not precisely of their sentiments, and not only rebaptized those who came over to their party from other churches, but, with respect to those who had been ordained ministers of the gospel, they either deprived them of their office, or obliged them to be ordained the second time.