stylistic:tone, quality:correction
Roman period

During Roman rule, Kosovo was part of two provinces, with its western part being part of Praevalitana, and the vast majority of its modern territory belonging to Dardania. Praevalitana and the rest of Illyria was conquered by the Roman Republic in 168 BC. On the other hand, Dardania maintained its independence until the year 28 BC, when the Romans, under Augustus, annexed it into their Republic. Dardania eventually became a part of the Moesia province. During the reign of Diocletian, Dardania became a full Roman province and the entirety of Kosovo's modern territory became a part of the Diocese of Moesia, and then during the second half of the 4th century, it became part of the Praetorian prefecture of Illyricum.

During Roman rule, a series of settlements developed in the area, mainly close to mines and to the major roads. The most important of the settlements was Ulpiana, which is located near modern-day Gračanica. It was established in the 1st century AD, possibly developing from a concentrated Dardanian oppidum, and then was upgraded to the status of a Roman municipium at the beginning of the 2nd century during the rule of Trajan. Ulpiana became especially important during the rule of Justinian I, after the Emperor rebuilt the city after it had been destroyed by an earthquake and renamed it to Iustinianna Secunda.

Other important towns that developed in the area during Roman rule were Vendenis, located in modern-day Podujevo; Viciano, possibly near Vushtrri; and Municipium Dardanorum, an important mining town in Leposavić. Other archeological sites include Çifllak in Western Kosovo, Dresnik in Klina, Pestova in Vushtrri, Vërban in Klokot, Poslishte between Vërmica and Prizren, Paldenica near Hani i Elezit, as well as Nerodimë e Poshtme and Nikadin near Ferizaj. The one thing all the settlements have in common is that they are located either near roads, such as Via Lissus - Naissus, or near the mines of North Kosovo and eastern Kosovo. Most of the settlements are archaeological sites that have been discovered recently and are being excavated.

It is also known that the region was Christianised during Roman rule, though little is known regarding Christianity in the Balkans in the three first centuries AD. The first clear mention of Christians in literature is the case of Bishop Dacus of Macedonia, from Dardania, who was present at the First Council of Nicaea (325). It is also known that Dardania had a Diocese in the 4th century, and its seat was placed in Ulpiana, which remained the episcopal center of Dardania until the establishment of Justiniana Prima in 535 AD. The first known bishop of Ulpiana is Machedonius, who was a member of the council of Serdika. Other known bishops were Paulus (synod of Constantinople in 553 AD), and Gregentius, who was sent by Justin I to Ethiopia and Yemen to ease problems among different Christian groups there.