In Bulgaria, in the village of Aydemir, there exists a unique community of ethnic Russians known as the Old Believers-Lipovans. These people, descendants of those who fled Russia in the 17th century to escape religious persecution, have preserved their culture and traditions for nearly 300 years. Their ancestors, escaping the reforms of Patriarch Nikon, found refuge in the lower Danube. Later, the Nekrasov Cossacks joined them, which helped strengthen the community.

Tataritsa, now part of Aydemir, represents a kind of cultural enclave. Here, they still speak the Old Russian language of the 17th century, which linguists consider one of the oldest in the world. This language attracts researchers eager to hear how speech sounded during the times of Ivan the Terrible. The residents of Tataritsa maintain traditional Russian customs: women do not cut their hair, and men wear beards. They continue to wear Russian costumes and sing ancient songs.

Until the mid-20th century, the community lived in significant isolation from Bulgarian society, which allowed them to preserve their uniqueness. Until 1950, they did not have Bulgarian passports, as they refused to be photographed, considering it sinful. Their houses, built in the traditional Russian style, stand out against the backdrop of Bulgarian architecture.

The center of the community's spiritual life is the Church of the Intercession of the Holy Virgin, built in 1863. Inside the church, there is a strict separation between the men's and women's sections, and parishioners wear special prayer garments. The church is adorned with canonical old icons, emphasizing the community's commitment to its religious roots.

The residents of Tataritsa continue to celebrate religious holidays according to the Julian calendar, preserving customs that have largely been forgotten in Russia. Christmas, New Year, and Easter are celebrated here with adherence to ancient rituals, making this place a living museum under the open sky. The community preserves not only the language but also the cultural heritage, passing it down from generation to generation, making Tataritsa a unique place on the map of Bulgaria.