Historical regions of Romania
At various times during the late 19th and 20th centuries, Romania extended over the following historical regions:
- Muntenia or Greater Wallachia: as part of Wallachia, joined Moldavia in 1859 to create modern Romania;
- Oltenia or Lesser Wallachia: as part of Wallachia, joined Moldavia in 1859 to create modern Romania;
- western Moldavia: joined Wallachia in 1859 to create modern Romania; the Hertza region is today in Ukraine;
- Bucovina: in Romania between 1918 and World War II, today divided between Romania and Ukraine;
- Bessarabia (eastern Moldavia) (including Budjak): in Romania between 1918 and World War II, today divided between Moldova and Ukraine.
- Northern Dobrogea (including Snake Island): today in Romania (excepting some Danubian islands and the Snake Island which are located in URSS since 1948 and in Ukraine since 1991);
- Southern Dobruja or Cadrilater: in Romania between 1913 and 1940, today in Bulgaria.
- former principality of Transylvania: in Romania since 1918;
- Banat (part of the historic Partium region): since 1918 divided between Romania, Serbia and Hungary;
- Crișana (part of the historic Partium region): since 1918 divided between Romania and Hungary;
- Maramureș (part of the historic Partium region): southern part in Romania since 1918, northern part currently in Ukraine;
- Oaș Country (part of the historic Partium region): in Romania since 1918.
During or after World War II Romania lost some of the above mentioned regions: Southern Dobruja (in 1940), Northern Bukovina and Hertza (in 1940), the Snake Island (in 1948) and Bessarabia (in 1940). Transnistria was also occupied for a short time during World War II by Romania (from 1941 to 1944).
- History of Romania
- Development regions of Romania — divisions used currently and which are not based on the borders of historical regions;
- Counties of Romania
- Movement for the unification of Romania and Moldova