Cieszyn Silesia was originally part of the Moravian State. Before the year 991 it became part of Poland and in 1289-1290 Cieszyn Duchy obtained status of independence, and in 1327 became part of the Czech Crown. In 1653, after the Piast dynasty had ended, Cieszyn Duchy became the property of Habsburg Dynasty. The situation lasted until the Austro-Hungarian monarchy collapsed in 1918. Newly reborn Poland went into conflict with the new state of Czechoslovakia over the Cieszyn Duchy teritory, that was divided on 28th July 1920 on the decision of the Ambassadors Council during a Conference in Spa. Also, Cieszyn town was divided into two parts.
Euroregion Cieszyn Silesia - Tĕšínské Slezsko was created on 22nd April 1998. On the Polish side it was represented by the Association of Regional Growth and Cooperation „Olza“ with the seat in Cieszyn, the Czech side was represented by the Regionální sdružení územní spolupráce Těšínského Slezska with its seat in the Czech part of Cieszyn, and consists as a whole: Sdružení obcí Jablunkovska, Svaz obcí okresu Karviná a Regionální rada rozvoje a spolupráce se sídlem v Třinci.
Euroregion is situated in the Polish South border region and the Czech North-East border region, next to Slovakia. The natural axis for this region is the river Olza. Both: Cieszyn and Český Těšín are located by its bank and are considered as being the heart of the area.
Euroregion is very attractive in terms of sightseeing and leisure & health resorts. High-quality touristic facilities that allow the practicing of all form of tourism.
Euroregion administration activity supports local and regional border-area development especially in the following fields of social and economic life: