The Romanian state was formed in 1859 through a personal union of the Danubian Principalities of Moldavia and Wallachia. The new state, officially named Romania since 1866, gained independence from the Ottoman Empire in 1877. During World War I, after declaring its neutrality in 1914, Romania fought together with the Allied Powers from 1916. In the aftermath of the war, Bukovina, Bessarabia, Transylvania, and parts of Banat, Crișana, and Maramureș became part of the Kingdom of Romania. In June–August 1940, as a consequence of the Molotov–Ribbentrop Pact and Second Vienna Award, Romania was compelled to cede Bessarabia and Northern Bukovina to the Soviet Union and Northern Transylvania to Hungary. In November 1940, Romania signed the Tripartite Pact and, consequently, in June 1941 entered World War II on the Axis side, fighting against the Soviet Union until August 1944, when it joined the Allies and recovered Northern Transylvania.
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 present-day 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. As a Roman domain Moesia was administered at first by the 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 Dacians were the ancient Indo-European inhabitants of the cultural region of Dacia, located in the area near the Carpathian Mountains and west of the Black Sea. They are often considered a subgroup of the Thracians. This area includes mainly the present-day countries of Romania and Moldova, as well as parts of Ukraine, Eastern Serbia, Northern Bulgaria, Slovakia, Hungary and Southern Poland. The Dacians and the related Getae spoke the Dacian language, which has a debated relationship with the neighbouring Thracian language and may be a subgroup of it. Dacians were somewhat culturally influenced by the neighbouring Scythians and by the Celtic invaders of the 4th century BC.
Burebista was the king of the Getae and Dacian tribes from 82/61 BC to 45/44 BC. He was the first king who successfully unified the tribes of the Dacian kingdom, which comprised the area located between the Danube, Tisza, and Dniester rivers, and modern day Romania and Moldova. In the 7th and 6th centuries BC it became home to the Thracian peoples, including the Getae and the Dacians. From the 4th century to the middle of the 2nd century BC the Dacian peoples were influenced by La Tène Celts who brought new technologies with them into Dacia. Sometime in the 2nd century BC, the Dacians expelled the Celts from their lands. Dacians often warred with neighbouring tribes, but the relative isolation of the Dacian peoples in the Carpathian Mountains allowed them to survive and even to thrive. By the 1st century BC the Dacians had become the dominant power.
The Kosons are the only gold coins that have been minted by the Dacians, named after the Greek alphabet inscription "ΚΟΣΩΝ" on them. It is thought that "Koson" is the name of an otherwise historically unrecorded Dacian king, though he may be identical to the Cotison mentioned by Horace and Suetonius.
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.
The Anartes were Celtic tribes, or, in the case of those sub-groups of Anartes which penetrated the ancient region of Dacia, Celts culturally assimilated by the Dacians.
Rholes or Roles was a Getae chieftain in Scythia Minor mentioned by Cassius Dio in his Roman History. According to Dio, he helped Roman general Marcus Licinius Crassus defeat the Bastarnae, and when he visited Octavian, he was treated as "a friend and ally" for his support for the Romans. Later he sent for Crassus to help in his conflict with Getae chieftain Dapyx. These events have been dated to 31-27 BC.
Comosicus was a Dacian king and high priest who lived in the 1st century BC. The only reference to Comosicus is a passage in the writings of the Roman historian Jordanes.
Duras, also known as Duras-Diurpaneus, was king of the Dacians between maybe AD 69 and 87, during the time that Domitian ruled the Roman Empire. Duras' immediate successor was Decebalus.
Krobyzoi is a Thracian, Getic or Dacian tribe.
Teurisci was a Dacian tribe at the time of Ptolemy. They were originally considered a branch of the Celtic Taurisci (Noricum), who moved to Upper Tisza. However, the archaeology shows that Celts have been absorbed by Dacians, at some point creating a Celto-Dacian cultural horizon in the upper Tisza.
Argidava was a Dacian fortress town close to the Danube, inhabited and governed by the Albocense. Located in today's Vărădia, Caraș-Severin County, Romania.
The Antiquity in Romania spans the period between the foundation of Greek colonies in present-day Dobruja and the withdrawal of the Romans from "Dacia Trajana" province. The earliest records of the history of the regions which now form Romania were made after the establishment of three Greek towns—Histria, Tomis, and Callatis—on the Black Sea coast in the 7th and 6th centuries BC. They developed into important centers of commerce and had a close relationship with the natives. The latter were first described by Herodotus, who made mention of the Getae of the Lower Danube region, the Agathyrsi of Transylvania and the Sygannae of Crişana.
Slavery in Dacia was widespread both among the Dacian and Getae tribes and after the Roman conquest of Dacia.
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.
