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.
Native American Day as Native American Day in South Dakota. On Oct 3, 2017, The Proclamation of Native American day was announced by the Mayor of Sioux Falls, South Dakota. Accepting the Proclamation would be the Lakota-Dakota-Nakota representatives of Sioux Falls. South Dakota and Vermont, which celebrates Indigenous Peoples' Day, are the only states to practice non-observance of the federal holiday of Columbus Day. In 1994 the state General Assembly established the "fourth Monday in September of each year" to be especially observed in Tennessee as "American Indian Day" (TCA 15-2-106), "to recognize the contributions of American Indians with suitable ceremony and fellowship