Dacia was the land inhabited by the Dacians, its core in Transylvania, stretching to the Danube in the south, the Black Sea in the east, and the Tisza in the west. The Carpathian Mountains were located in the middle of Dacia. It thus roughly corresponds to the present-day countries of Romania, as well as parts of Moldova, Bulgaria, Serbia, Hungary, Slovakia, and Ukraine.
Moesia was an ancient region and later Roman province situated in the Balkans south of the Danube River. Moesian Province was first administered by governor of Noricum as 'Civitates of Moesia and Triballia'. It included most of the territory of modern eastern Serbia, Kosovo, north-eastern Albania, northern parts of North Macedonia, Northern Bulgaria, Romanian Dobruja and small parts of Southern Ukraine.
The praetorian prefecture of Illyricum was one of four praetorian prefectures into which the Late Roman Empire was divided.
Justiniana Prima was an Eastern Roman city that existed from 535 to 615, and currently an archaeological site, known as or Caričin Grad, near modern Lebane in the Leskovac region, southern Serbia. It was founded by Emperor Justinian I (527-565) and served as the metropolitan seat of the then newly founded Archbishopric of Justiniana Prima, which became the main church administrative body of the central and western Balkans with jurisdiction from Praevalitana to Dacia Ripensis. Justinian Prima was originally designed to become the capital of the prefecture of Illyricum, but for reasons likely related with its status near the Roman frontiers of the 6th century CE, Thessaloniki was preferred. It was abandoned less than 100 years after its foundation.
Pannonia Prima was an ancient Roman province. It was formed in the year 296, during the reign of Emperor Diocletian. Previously, it was a part of the province of Pannonia Superior, which, along with Pannonia Inferior, was gradually divided into four administrative units: Pannonia Prima, Pannonia Secunda, Valeria, and Savia. This transition was completed by the time of Constantine. According to the Notitia Dignitatum, Pannonia Prima was governed by a Praeses.
The Diocese of Pannonia, from 395 known as the Diocese of Illyricum, was a diocese of the Late Roman Empire. The seat of the vicarius was Sirmium.
Domitian's Dacian War was a conflict between the Roman Empire and the Dacian Kingdom, which had invaded the province of Moesia. The war occurred during the reign of the Roman emperor Domitian, in the years 86–88 AD.
Dacia Ripensis was the name of a Roman province in the northern Balkan peninsula, immediately south of the Middle Danube. Its capital was Ratiaria. It was a district less urban than neighbouring Dacia Mediterranea and more militarized; "military camps and forts, rather than cities, were typical of the province". Besides Ratiaria, Oescus was the major settlement.
Dacia Mediterranea was a late antique Roman province, whose capital city was Serdica.
The Diocese of Dacia was a diocese of the later Roman Empire, in the area of modern western Bulgaria, central Serbia, Montenegro, northern Albania and northern North Macedonia. It was subordinate to the Praetorian prefecture of Illyricum. Its capital was at Serdica.
Praevalitana was a Late Roman province that existed between c. 284 and c. 600. It included parts of present-day Montenegro, northern Albania, and part of present-day Kosovo. Its capital city was Doclea, later Scodra.
Dardania was a Illyrian province in the Central Balkans, initially an unofficial region in Moesia (87–284), and then a province administratively part of the Diocese of Moesia (293–337). It was named after the tribe of the Dardani who inhabited the region in classical antiquity prior to the Roman conquest.
Ratiaria was a city founded by the Moesians, a Daco-Thracian tribe, in the 4th century BC, along the river Danube. In Roman times it was named Colonia Ulpia Traiana Ratiaria.
Much of the territory of the modern state of Serbia was part of the Roman Empire and later the Eastern Roman Empire. In particular, the region of Central Serbia was under Roman rule for about 800 years, starting from the 1st century BC, interrupted by the arrival of the Slavs into the Balkans during the 6th century, but continued after fall of the First Bulgarian Empire in the early 11th century and permanently ended with the rise of the Second Bulgarian Empire in the late 12th century. The territories were administratively divided into the provinces of Moesia, Pannonia and Dardania. Moesia Superior roughly corresponds to modern Serbia proper; Pannonia Inferior included the eastern part of Serbia proper; Dardania included the western part of Serbia proper. After its reconquest from the Bulgarians by Emperor Basil II in 1018, it was reorganized into the Theme of Bulgaria.
The Diocese of Moesia was a diocese of the later Roman Empire, in the area of modern western Bulgaria, central Serbia, Montenegro, Albania, North Macedonia, and Greece.
Roman Dacia was a province of the Roman Empire from 106 to 271–275 AD. Its territory consisted of what are now the regions of Oltenia, Transylvania and Banat. During Roman rule, it was organized as an imperial province on the borders of the empire. It is estimated that the population of Roman Dacia ranged from 650,000 to 1,200,000. It was conquered by Trajan (98–117) after two campaigns that devastated the Dacian Kingdom of Decebalus. However, the Romans did not occupy its entirety; Crișana, Maramureș, and most of Moldavia remained under the Free Dacians.
Moesia Prima was a frontier province of the Late Roman Empire, situated in the central parts of present-day Serbia, along the south bank of the Danube River. Provincial capital was Viminacium, near modern Kostolac in Serbia).
The Eparchy of Niš is an eparchy (diocese) of the Serbian Orthodox Church with its seat in Niš, in Serbia. It has jurisdiction over the south-eastern regions of Serbia. Since 2017, Serbian Orthodox Bishop of Niš is Arsenije Glavčić.
The history of Dacia comprises the events surrounding the historical region roughly corresponding to the present territory of Romania and Moldova and inhabited by the Getae and Dacian peoples, with its capital Sarmizegetusa Regia.
