Central Balkans

Antiquity

The Bulgars and Slavs arrived in the sixth-century and began assimilating and displacing already-assimilated (through Romanization and Hellenization) older inhabitants of the northern and central Balkans. This migration brought about the formation of distinct ethnic groups amongst the South Slavs, which included the Bulgarians, Croats and Serbs and Slovenes. Prior to the Slavic landing, parts of the western peninsula have been home to the Proto-Albanians. Including cities like Nish, Shtip, and Shkup. This can be proven through the development of the names, for example Naissos > Nish and Astibos > Shtip follow Albanian phonetic sound rules and have entered Slavic, indicating that Proto-Albanian was spoken in those cities prior to the Slavic invasion of the Balkans. Proto-Albanian speakers were Christianized under the Latin sphere of influence, specifically in the 4th century CE, as shown by the basic Christian terms in Albanian, which are of Latin origin and entered Proto-Albanian before the Gheg–Tosk dialectal diversification.