Noun
Old Believer (plural Old Believers)
(religion) Any of those who separated from the official Russian Orthodox Church after 1666 as a protest against church reforms introduced by Patriarch Nikon between 1652 and 1666. They continue liturgical practices which predate the reforms.
Antonyms: Nikonite, Nikonian
Synonym: Raskolnik
Culture Gate of the Ulan-Ude Ethnographic Museum A Russian Old Believer church moved to the ethnographic museum in Ulan-Ude Until 1991, Ulan-Ude was closed to foreigners. Source: Internet