History of Lithuania boycotted by the Jews, Lithuanians and Belarusians, then was annexed into Poland on March 24, 1922. The Conference of Ambassadors awarded Vilnius to Poland in March 1923. Lithuania did not accept this decision and broke all relations with Poland. The two countries were officially at war over Vilnius, the historical capital of Lithuania, inhabited at that time largely by Polish-speaking and Jewish populations between 1920 and 1938. The dispute continued to dominate Lithuanian domestic politics and foreign policy and doomed the relations with Poland for the entire interwar period. For administrative purposes, the de facto territory of the country was
History of the Jews in Lithuania the lands between the Baltic and Black Seas that would become part of the Grand Duchy of Lithuania. The later and much larger stream of immigration originated in the 12th century and received an impetus from the persecution of the German Jews by the Crusaders. The traditional language of the vast majority of Jews of Lithuania, Yiddish, is based largely upon the Medieval German spoken by the western Germanic Jewish immigrants. The peculiar conditions that prevailed in Lithuania compelled the first Jewish settlers to adopt a different mode of life from that followed by their western co-religionists. In Lithuania of