Romania

The territory of present-day Romania was inhabited in antiquity by the Dacians, a Thracian people whose kingdom under Burebista in the first century BCE and later under Decebalus controlled a substantial swathe of the lower Danube region. After two hard-fought campaigns, the Roman emperor Trajan defeated Decebalus and annexed much of Dacia in 106 CE, establishing a province whose Latin-speaking colonists would, according to the prevailing scholarly account, contribute to the formation of the Romanian language and ethnos. Roman administration was withdrawn under Aurelian around 271 CE, after which the lands were traversed in turn by Goths, Huns, Gepids, Avars, Slavs, Bulgars, Magyars, Pechenegs, and Cumans during the long migration period.

By the late Middle Ages two Romanian principalities had taken durable shape on the eastern and southern flanks of the Carpathians: Wallachia, traditionally founded by Basarab I in the early fourteenth century, and Moldavia, consolidated under Bogdan I shortly afterwards. Transylvania, with its mixed Romanian, Hungarian, Saxon, and Szekely population, developed separately within the Kingdom of Hungary and later as an autonomous principality. From the fifteenth century onward Wallachia and Moldavia, despite the resistance of figures such as Stephen the Great, Michael the Brave, and Vlad III, fell under Ottoman suzerainty while retaining domestic autonomy. The two principalities were briefly united in 1600 under Michael the Brave, an event later treated as a precursor of the modern state.

The nineteenth century brought the Phanariot regime, the Russo-Ottoman wars, and the reforming impulses of 1821 and 1848. In 1859 Wallachia and Moldavia elected the same prince, Alexandru Ioan Cuza, creating a personal union that formally became Romania in 1862 and gained full independence from the Ottoman Empire in 1877 to 1878, recognised at the Congress of Berlin. A German-born dynasty, the Hohenzollern-Sigmaringen line beginning with Carol I, presided over a constitutional monarchy that expanded territorially after the Second Balkan War and, decisively, at the end of the First World War, when the union of Transylvania, Bessarabia, and Bukovina with the Old Kingdom in 1918 produced Greater Romania.

The interwar parliamentary order eroded under King Carol II's royal dictatorship and the rise of the fascist Iron Guard. During the Second World War Romania, under Marshal Ion Antonescu, fought alongside the Axis powers before King Michael I led a coup in August 1944 that switched the country to the Allied side. Soviet occupation followed, the monarchy was abolished in 1947, and a People's Republic was established. After the rigid Stalinist phase under Gheorghe Gheorghiu-Dej, Nicolae Ceausescu's increasingly autocratic rule from 1965 culminated in severe austerity and was ended by the violent revolution of December 1989, in which Ceausescu was overthrown and executed.

Post-communist Romania adopted a new constitution in 1991, establishing a semi-presidential republic with a directly elected president and a bicameral parliament. The transition was marked by economic restructuring, accession to NATO in 2004, and entry into the European Union on 1 January 2007, alongside continuing concerns over corruption and judicial reform. Today Romania is a unitary semi-presidential republic in which executive authority is shared between the president and a prime minister responsible to the bicameral Parliament composed of the Senate and the Chamber of Deputies.