Demographic history of the Vilnius region languages to slavonic . Lithuanian language was defined as one of the dialects native Slavs. To the end of 19 century this slavic lithuanian language began to be determined as belarusian by Moscow Tsardom imperial ideologists, before this period there is no any reports the language mentioned in modern sense. In 2015 Polish linguist Miroslaw Jankowiak attested that many Poles of Vilnius region still speak a form of Belarussian vernacular called "mowa prosta" ('simple speech') by local people. Following the decline of the Polish-Lithuanian Commonwealth in late 18th century, the state had been divided among its neighbours in what is
Language Movement Day Language Day. The UNESCO General Conference took the decision that took effect on 17 November 1999, when it unanimously adopted a draft resolution submitted by Bangladesh and co-sponsored and supported by 28 other countries. Language Movement Day Language Movement Day or Language Revolution Day or Bengali Language Movement Day ( "Bhasha Andolôn Dibôs"), 21 February ("Ekushey February"), which is also referred to as Language Martyrs' Day or Martyrs' Day ( "Shôhid Dibôs"), is a national holiday of Bangladesh to commemorate protests and sacrifices to protect Bengali as a national language during the Bengali Language Movement of 1952. After the partition