Ropice

The Ropičanka (Polish: Ropiczanka) is a 16 kilometres (10 mi)-long stream in the Moravian-Silesian Region, Czech Republic. It is a left tributary of the Olza, which it enters on the outskirts of Český Těšín. The Ropičanka flows through Řeka, Smilovice, Střítež and Ropice (from source to mouth). A small portion of its volume (about 0.07 m³/s or 2.5 ft³/s) is diverted to the watershed of the Stonávka in order to increase the flow rate at the Těrlicko Dam.

(Polish: , German: Nieder Zukau) is a village in Karviná District, Moravian-Silesian Region, Czech Republic. It was a separate municipality but became administratively a part of Czech Teschen in 1960. It has a population of 1,064 (2005).The name of the village is possessive in origin derived from personal name Żuk (żuk means also a beetle).

(Polish: , German: Schibitz) was a village in Karviná District, Moravian-Silesian Region, Czech Republic. It was a separate municipality, but became administratively a part of Český Těšín in 1947. The name is derived from the świba bush, from the cornus genius.

Błogocice is a district of Cieszyn, Silesian Voivodeship, Poland. It was a separate municipality, but became administratively a part of Cieszyn in 1923. The village was first mentioned in 1447. It belonged then to the Duchy of Teschen, formed in 1290. Since 1791 it belonged to Komora Cieszyńska. Before 1920 it was administratively a part of Svibice, but after division of Cieszyn Silesia in that year it became a separate municipality. Three years later it was submerged with Cieszyn.

Český Těšín District (Czech: okres Český Těšín, Polish: powiat Czeski Cieszyn) was a district (okres) of Czechoslovakia existing between 1920–1938 and 1945–1960. Its administrative centre was the town of Český Těšín. The district was formed after the division of Cieszyn Silesia on 28 July 1920, which split the town of Teschen/Cieszyn/Těšín into Cieszyn and Český Těšín as well as the preceding Teschen County originally formed in 1850 on the territory of Austrian Silesia. Following the Munich Agreement, in November 1938 together with the Trans-Olza region it was annexed by Poland. The Český Těšín District was administratively transformed to a short-lived Cieszyn Zachodni County and afterwards it was merged with Cieszyn County of Silesian Voivodeship. The area was then annexed by Nazi Germany at the beginning of World War II. After the war it was restored to Czechoslovakia. Český Těšín District ceased to exist as a result of a reform act issued on 9 April 1960 and was succeeded mostly by the Frýdek-Místek District, with some municipalities including Český Těšín transferred to the Karviná District.The territory of the district was in large part inhabited by the Polish minority. Český Těšín District covered the exact southern part of Trans-Olza area and Poles were proportionately more numerous there than in the newly gerrymandered Frýdek-Místek District, which also encompasses the ethnically pure Czech areas west of Trans-Olza.

(Polish: ) is a village in Frýdek-Místek District, Moravian-Silesian Region, Czech Republic. It was a separate municipality but became administratively a part of Třinec in 1980. It has a population of 1,531 (1 January 2008) and lies in the historical region of Cieszyn Silesia. The name was originally patronymic in origin derived from personal name Niebor or Niebora and ending typically in Slavic fashion in such names (-(ow)ice, often Germanised as -(ow)itz). Later it was transformed into possessive name (e.g. w Neborowie, 1464).

Těšín Theatre (Czech: Těšínské divadlo, Polish: Teatr Cieszyński) is a theatre in the town of Český Těšín, Czech Republic. The theatre is unique because it comprises two ensembles, Czech and Polish; plays are presented in both the Czech and Polish languages. The Polish ensemble serves the Polish minority in the Czech Republic. Together with ensembles in Vilnius and Lviv it is one of the few theatres outside Poland which has a professional Polish ensemble.

Třinec Iron and Steel Works (TŽ) (Czech: Třinecké železárny, Polish: Huta trzyniecka) is a producer of long rolled steel products in Třinec, Moravian-Silesian Region, Czech Republic. TŽ produces over a third of all steel produced in the Czech Republic (roughly 2.5 million tons annually). Since its establishment, Třinecké železárny's plants have produced more than 150 million tons of crude steel. Moravia Steel is the major shareholder of TŽ, the biggest Czech steel company controlled by domestic capital.

(Polish: , German: Ober Zukau) is a village in Karviná District, Moravian-Silesian Region, Czech Republic. It was a separate municipality but became administratively a part of Český Těšín in 1975. It has a population of 719 (2005).The name of the village is possessive in origin derived from personal name Żuk (Żuk/Žuk means beetle in both Polish and Czech).

Český Těšín (Czech: [ˈtʃɛskiː ˈcɛʃiːn] ; Polish: Czeski Cieszyn; German: Tschechisch-Teschen) is a town in Karviná District in the Moravian-Silesian Region of the Czech Republic. It has about 23,000 inhabitants. Český Těšín lies on the west bank of the Olza river, in the heart of the historical region of Cieszyn Silesia. Until the 1920 division of the region between Poland and Czechoslovakia it was just a western suburb of the town of Teschen, which after the division fell to Poland as Cieszyn. The combined population of the Czech and Polish parts of the town is around 57,000 (23,500 in Český Těšín, 33,500 in Cieszyn). The historic centre in Český Těšín is well preserved and is protected by law as an urban monument zone.

Vělopolí (Polish: ) is a municipality and village in Frýdek-Místek District in the Moravian-Silesian Region of the Czech Republic. It has about 300 inhabitants. The municipality has a significant Polish minority.

Cieszyn Silesia, Těšín Silesia or Teschen Silesia (Polish: Śląsk Cieszyński [ˈɕlɔ̃sk tɕɛˈʂɨj̃skʲi] ; Czech: Těšínské Slezsko [ˈcɛʃiːnskɛː ˈslɛsko] or Těšínsko [ˈcɛʃiːnsko] ; German: Teschener Schlesien or Olsagebiet) is a historical region in south-eastern Silesia, centered on the towns of Cieszyn and Český Těšín and bisected by the Olza River. Since 1920 it has been divided between Poland and Czechoslovakia, and later the Czech Republic. It covers an area of about 2,280 square kilometres (880 sq mi) and has about 810,000 inhabitants, of which 1,002 square kilometres (387 sq mi) (44%) is in Poland, while 1,280 square kilometres (494 sq mi) (56%) is in the Czech Republic. The historical boundaries of the region are roughly the same as those of the former independent Duchy of Cieszyn. Currently, over half of Cieszyn Silesia forms one of the euroregions, the Cieszyn Silesia Euroregion, with the rest of it belonging to Euroregion Beskydy.