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.
Lithuanian census of 1923
The Lithuanian census of 1923 was performed on September 17–23, several years after Lithuania re-established its independence in 1918. It was mandated by the Constituent Assembly of Lithuania in 1922. The census counted the total population of 2,028,971. It was the only census in interwar Lithuania. The next census was carried out in 1959 as part of the Soviet census.