The settlers came primarily from what is now eastern Bulgaria, but many were also descendants of Bulgarians of the western part of the country that had moved east in and before the 18th century.
In 1856, after the Treaty of Paris, the region of Bessarabia was divided with the southwestern parts, including Bolhrad, Izmail and Kiliia, incorporated into Moldova (since 1861 – Kingdom of Romania), and the northeastern ones, centered on Comrat, remaining in the Russian Empire.
[citation needed] In 1861, 20,000 Bulgarians from the Romanian part of Bessarabia moved to Russia, where they were given land in Taurida Governorate to replace the Nogais who had left what was formerly territory of the Crimean Khanate.
In contrast with the previous period of Romanian control, most cultural and educational rights of the Bulgarian minority were taken away which led to cases of armed resistance such as the Tatarbunary Uprising of 1924.
Although an officially accepted minority under Soviet rule, the local Bulgarians lost some features of their cultural identity.