History of Lithuania
On February 16, 1918, Lithuania was re-established as a democratic state. It remained independent until the outset of World War II, when it was occupied by the Soviet Union under the terms of the Molotov–Ribbentrop Pact. Following a brief occupation by Nazi Germany after the Nazis waged war on the Soviet Union, Lithuania was again absorbed into the Soviet Union for nearly 50 years. In 1990–1991, Lithuania restored its sovereignty with the Act of the Re-Establishment of the State of Lithuania. Lithuania joined the NATO alliance in 2004 and the European Union as part of its enlargement in 2004.
National Museum of Lithuania
The Museum of Antiquities in Vilnius, founded by Eustachy Tyszkiewicz in 1855, was the forerunner of today's museum. At its inception, the museum focused on the culture and history of the Lithuanian Grand Duchy. Made up mostly of Polish private collections, it was quite popular and received many visitors. After the January Uprising of 1863, the Russian Empire moved much of the collection to Moscow; the remaining collections were re-organized and were incorporated into the Vilnius Public Libray. From 1866 to 1914, the museum and the library operated together. In 1915, when the Eastern Front of World War I approached Vilnius, more of the exhibits was taken to Russia. 
After Lithuanian independence was established in 1918, the Museum of History and Ethnography was founded, based on the collections in the Museum of Antiquities and the Lithuanian Scientific Society. Its director was Jonas Basanavičius, one of the signatories to the Act of Independence of Lithuania. After 1919, Vilnius became a part of Poland, and the organization was incorporated into Vilnius University.