History of the Slovak language ). The usage of Czech in Slovak environment resulted to the Slovakized Czech language - a variant of cultural Czech with Slovak elements. This variant existed since the penetration of Czech to present-day Slovakia and was used e.g. in city books, official correspondence, etc. Early writings had a various frequency of Slovak elements caused by a poor knowledge of standard Czech among many Slovak native speakers, the influence of vernacular language and cultural Slovak. The normalized form of Slovakized Czech existed since the 17th century. In the normalized form, Czech letters and words were systematically replaced by their Slovak equivalents.
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