Czech Silesia
The Czech language (divided into three dialects in Bohemia, four dialects in Moravia, and two dialects in Czech Silesia) is the official language of the state. There is also the transitional Cieszyn Silesian dialect as well as the Polish language in Cieszyn Silesia, both spoken in Czech Silesia. Various Sudeten German dialects are currently practically extinct: present Czech Germans speak mainly Czech or Standard German. Czech Sign Language is the language of most of the deaf community.