High Quality Content by WIKIPEDIA articles! Russians (Bulgarian: ,
rusnatsi) form the fourth largest ethnic group in Bulgaria,
numbering 15,595 according to the 2001 census, and mostly living in
the large urban centres, such as Sofia, Plovdiv, Varna and Burgas.
Although the largest wave of Russian settlers (White Guards)
arrived following the events surrounding the October Revolution and
the Russian Civil War, compact groups of Russians had been living
in Bulgaria for centuries before that. Among the early Russian
settlers were Old Believer Nekrasov Cossacks, some of which founded
the village of Tataritsa in then-Ottoman-ruled Southern Dobruja
(nowadays part of the village of Aydemir in Silistra Province) in
1674, building a church in 1750.