Lithuania result of the staged Żeligowski's Mutiny in October 1920, Poland took control of Vilnius Region and annexed it as Wilno Voivodeship in 1922. Lithuania continued to claim Vilnius as its "de jure" capital and relations with Poland remained particularly tense and hostile for the entire interwar period. In January 1923, Lithuania staged the Klaipėda Revolt and captured Klaipėda Region (Memel territory) which was detached from East Prussia by the Treaty of Versailles. The region became an autonomous region of Lithuania. On 15 May 1920, the first meeting of the democratically elected constituent assembly took place. The documents it adopted, i.
Office of the Chief Archivist of Lithuania Office of the Chief Archivist of Lithuania The Office of the Chief Archivist of Lithuania is a government agency, which participates in the shaping of national policy in the field of management and use of documents and archives, as well as implements this policy, supports the Chief Archivist of Lithuania in the carrying-out of state administration of the field of documents and archives. The emergence of archives in Lithuania is associated with the formation of the Lithuanian state in the first half of the 13th century. The old Lithuanian chancery archives of Grand Duke and King Mindaugas did not survive: