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
Kokborok Day Kokborok Day Kokborok day (Borok day) is a festival celebrated in the Indian state of Tripura to celebrate the development of the Kokborok language. It is observed every January 19. The Kokborok language is an official language in Tripura. This day is chosen to commemorate its initial recognition as an official language in 1979. The activities include cultural programmes and literary activities. Kokborok is the Indigenous language of Tripura, spoken for thousands of years among the indigenous communities of Tripura."Kok" means language and "borok" means people (the people who speak Kokborok). Kokborok is one of the Tibeto-Burman languages widely spoken