section_path: Constituencies/Traditionalist groups/Old calendarists
section_name: Old calendarists
paragraph_text: Old calendarists
  
  Old Calendarists are traditionalist groups of Eastern Orthodox Christians that separated from mainstream Eastern Orthodox churches because some of the latter adopted the revised Julian calendar while Old Calendarists remained committed to the Julian calendar. Old Calendarists are not in communion with any mainstream Eastern Orthodox churches. "Old Calendarists" is another name for the True Orthodox movement in Romania, Bulgaria, Greece and Cyprus. In 1999, it was estimated that "here are probably over one million Old Calendarists in Romania, somewhat fewer in Greece, and considerably fewer in Bulgaria, Cyprus, and the Eastern Orthodox diaspora."