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.
Mindaugas
Although his reputation was unsettled during the following centuries and his descendants were not notable, he gained standing during the 19th and 20th centuries. Mindaugas was the only King of Lithuania; while most of the Lithuanian Grand Dukes from Jogaila onward also reigned as Kings of Poland, the titles remained separate. Now generally considered the founder of the Lithuanian state, he is also now credited with stopping the advance of the Tatars towards the Baltic Sea, establishing international recognition of Lithuania, and turning it towards Western civilization. In the 1990s the historian Edvardas Gudavičius published research supporting an exact coronation date – 6 July 1253. This day is now an official national holiday in Lithuania, Statehood Day.