Belarusian
The whole nation of Belarusians was "invisible" 150 years ago, with the area's people being known as Litvins, from the name of the Grand Duchy of Lithuania, to whom the Belarusian land belonged. The nation was under heavy Polonization, followed by Russification. The language recovered after the Russian Revolution, followed by another period of neglect.
A second chance of revival appeared after the dissolution of the Soviet Union, followed by significant increase of interest in Belarusian culture, language and historical heritage. The government of Alexander Lukashenko has been accused of associating these interests with opposition to his policy of union with Russia. As of 2005, Minsk, the capital of Belarus, does not have a single school with education carried out in the Belarusian language.
Read more about this topic: List Of Revived Languages