Original sentence: Dobrogea fell at certains times under Byzantine, Bulgarian and Tatar domination until the 14th century.In 1878 Romania received Northern Dobruja as compensation for ceding Southern Bessarabia to Russia, whereas Bulgaria received the smaller, southern part.In Northern Dobruja, most of the population was Romanian, but it included a Bulgarian enclave in the nortwest (around Babadag and Tulcea), as well as some scattered Turkish and Tatar people
Edited sentence: Dobruja was the first territory settled by the Bulgars as they migrated to the Balkans at the end of the 7th century, and with the exception of periods of Byzantine (971-1185) and Tatar (end of the 13th century) domination, remained under their rule until 14th century.In 1878 Romania received Northern Dobruja as compensation for ceding Southern Bessarabia to Russia (despite the presence of a large Bulgarian enclave in the nortwest (around Babadag and Tulcea), whereas Bulgaria received the smaller, southern part.In the 6th century, Scythia Minor was settled by Slavic tribe of the Severi.The region was swept by several consecutive waves of migration of nomadic peoples in the 4th and 5th century AD which depopulated the region