Duchy of LithuaniaThe Duchy of Lithuania (Ducatus Lithuaniae; Lietuvos kunigaikštystė) was a state-territorial formation of ethnic Lithuanians that existed from the 13th century to 1413. For most of its existence, it was a constituent part and a nucleus of the Grand Duchy of Lithuania. Other alternative names of the territorial formation, used in different periods, were Aukštaitija or Land of Lithuania (13th century), Duchy of Vilnius (14th – early 15th centuries), Lithuania proper, or simply Lithuania (in a narrow sense).
DzūkijaDzūkija or Dainava is one of five ethnographic regions of Lithuania. Dzūkija is a cultural region defined by traditional lifestyles and dialects of the local Lithuanian population (mostly rural farmers) and has never been defined as a political or administrative unit. Traditionally, Alytus is regarded as the capital of the region and largest city. The region has a significant Polish minority of around one third of the region's total population. Although Vilnius is surrounded by Dzūkija, city itself is not included in any ethnographic region.
Vilnius CountyVilnius County (Vilniaus apskritis) is the largest of the 10 counties of Lithuania, located in the east of the country around the city Vilnius and is also known as Capital Region (Sostinės regionas) by the statistics department and Eurostat. On 1 July 2010, the county administration was abolished, and since that date, Vilnius County remains as the territorial and statistical unit. Until the Partitions of the Polish–Lithuanian Commonwealth in late 18th century the area belonged to the Vilnius Voivodship and Trakai Voivodship of the Polish–Lithuanian Commonwealth.
Christianization of LithuaniaThe Christianization of Lithuania (Lietuvos krikštas) occurred in 1387, initiated by King of Poland and Grand Duke of Lithuania Władysław II Jagiełło and his cousin Vytautas the Great. It signified the official adoption of Christianity by Lithuania, the last pagan country in Europe. This event ended one of the most complicated and lengthiest processes of Christianization in European history. Lithuanians' contacts with the Christian religion predated the establishment of the Duchy of Lithuania in the 13th century.
MindaugasMindaugas (Myndowen, Mindowe, Мендог, Міндоўг, Mendog; c. 1203–1263) is the first known Grand Duke of Lithuania and the only crowned King of Lithuania. Little is known of his origins, early life, or rise to power; he is mentioned in a 1219 treaty as an elder duke, and in 1236 as the leader of all the Lithuanians. The contemporary and modern sources discussing his ascent mention strategic marriages along with banishment or murder of his rivals. He extended his domain into regions southeast of Lithuania proper during the 1230s and 1240s.
Vilnius RegionVilnius Region is the territory in present-day Lithuania and Belarus that was originally inhabited by ethnic Baltic tribes and was a part of Lithuania proper, but came under East Slavic and Polish cultural influences over time. The territory included Vilnius, the historical capital of the Grand Duchy of Lithuania. Lithuania, after declaring independence from the Russian Empire, claimed the Vilnius Region based on this historical legacy. Poland argued for the right of self-determination of the local Polish-speaking population.
