Silesia

Etymology

The names of Silesia in different languages most likely share their etymology— ; ; ; ; ; ; ; ; Latin, Spanish and English: Silesia; ; ; . The names all relate to the name of a river (now Ślęza) and mountain (Mount Ślęża) in mid-southern Silesia, which served as a place of cult for pagans before Christianization.

Ślęża is listed as one of the numerous Pre-Indo-European topographic names in the region (see old European hydronymy). According to some Polonists, the name Ślęża or Ślęż is directly related to the Old Polish words ślęg or śląg , which means dampness, moisture, or humidity. They disagree with the hypothesis of an origin for the name Śląsk from the name of the Silings tribe.

In Polish common usage, "Śląsk" refers to traditionally Polish Upper Silesia and today's Silesian Voivodeship, but less to Lower Silesia, which is different from Upper Silesia in many respects as its population was predominantly German-speaking from around the mid-19th century until 1945–48.

History

Main article: History of Silesia

In the fourth century BC from the south, through the Kłodzko Valley, the Celts entered Silesia, and settled around Mount Ślęża near modern Wrocław, Oława and Strzelin.

Germanic Lugii tribes were first recorded within Silesia in the 1st century BC. West Slavs and Lechites arrived in the region around the 7th century, and by the early ninth century, their settlements had stabilized. Local West Slavs started to erect boundary structures like the Silesian Przesieka and the Silesia Walls. The eastern border of Silesian settlement was situated to the west of the Bytom, and east from Racibórz and Cieszyn. East of this line dwelt a closely related Lechitic tribe, the Vistulans. Their northern border was in the valley of the Barycz River, north of which lived the Western Polans tribe who gave Poland its name.

The first known states in Silesia were Greater Moravia and Bohemia. In the 10th century, the Polish ruler Mieszko I of the Piast dynasty incorporated Silesia into the newly established Polish state. In 1000, the Diocese of Wrocław was established as the oldest Catholic diocese in the region, and one of the oldest dioceses in Poland, subjugated to the Roman Catholic Archdiocese of Gniezno. Poland repulsed German invasions of Silesia in 1017 at Niemcza and in 1109 at Głogów. During the Fragmentation of Poland, Silesia and the rest of the country were divided into many smaller duchies ruled by various Silesian dukes. In 1178, parts of the Duchy of Kraków around Bytom, Oświęcim, Chrzanów, and Siewierz were transferred to the Silesian Piasts, although their population was primarily Vistulan and not of Silesian descent.

Walloons came to Silesia as one of the first foreign immigrant groups in Poland, probably settling in Wrocław since the 12th century, with further Walloon immigrants invited by Duke Henry the Bearded in the early 13th century. Since the 13th century, German cultural and ethnic influence increased as a result of immigration from German-speaking states of the Holy Roman Empire.

The first granting of municipal privileges in Poland took place in the region, in the town of Złotoryja by Henry the Bearded. Medieval municipal rights modeled after Lwówek Śląski and Środa Śląska, both established by Henry the Bearded, became the basis of municipal form of government for several cities and towns in Poland, and two of five local Polish variants of medieval town rights. The Book of Henryków, which contains the earliest known sentence written in the Polish language, as well as a document which contains the oldest printed text in Polish, were created in Henryków and Wrocław in Silesia, respectively.

In 1241, the Mongols conducted their first invasion of Poland, causing widespread panic and mass flight. They looted much of the region and defeated the combined Polish, Moravian and German forces led by Duke Henry II the Pious at the Battle of Legnica, which took place at Legnickie Pole near the city of Legnica. Upon the death of Orda Khan, the Mongols chose not to press forward further into Europe, but returned east to participate in the election of a new Grand Khan (leader).

Between 1289 and 1292, Bohemian king Wenceslaus II became suzerain of some of the Upper Silesian duchies. Polish monarchs had not renounced their hereditary rights to Silesia until 1335. The province became part of the Bohemian Crown which was part of the Holy Roman Empire; however, a number of duchies remained under the rule of the Polish dukes from the houses of Piast, Jagiellon and Sobieski as formal Bohemian fiefdoms, some until the 17th–18th centuries. In 1469, sovereignty over the region passed to Hungary, and in 1490, it returned to Bohemia. In 1526 Silesia passed with the Bohemian Crown to the Habsburg monarchy.

In the 15th century, several changes were made to Silesia's borders. Parts of the territories that had been transferred to the Silesian Piasts in 1178 were bought by the Polish kings in the second half of the 15th century (the Duchy of Oświęcim in 1457; the Duchy of Zator in 1494). The Bytom area remained in the possession of the Silesian Piasts, though it was a part of the Diocese of Kraków. The Duchy of Krosno Odrzańskie (Crossen) was inherited by the Margraviate of Brandenburg in 1476 and with the renunciation of King Ferdinand I and the estates of Bohemia in 1538, became an integral part of Brandenburg. From 1645 until 1666, the Duchy of Opole and Racibórz was held in pawn by the Polish House of Vasa as dowry of the Polish queen Cecylia Renata.

In 1742, most of Silesia was seized by King Frederick II of Prussia in the War of the Austrian Succession, eventually becoming the Prussian Province of Silesia in 1815; consequently, Silesia became part of the German Empire when it was proclaimed in 1871. The Silesian capital Breslau became at that time one of the big cities in Germany. Breslau was a center of Jewish life in Germany and an important place of science (university) and industry (manufacturing of locomotives). German mass tourism started in the Silesian mountain region (Hirschberg, Schneekoppe).

After World War I, a part of Silesia, Upper Silesia, was contested by Germany and the newly independent Second Polish Republic. The League of Nations organized a plebiscite to decide the issue in 1921. It resulted in 60% of votes being cast for Germany and 40% for Poland. Following the third Silesian uprising (1921), however, the easternmost portion of Upper Silesia (including Katowice), with a majority ethnic Polish population, was awarded to Poland, becoming the Silesian Voivodeship. The Prussian Province of Silesia within Germany was then divided into the provinces of Lower Silesia and Upper Silesia. Meanwhile, Austrian Silesia, the small portion of Silesia retained by Austria after the Silesian Wars, was mostly awarded to the new Czechoslovakia (becoming known as Czech Silesia and Trans-Olza), although most of Cieszyn and territory to the east of it went to Poland.

Polish Silesia was among the first regions invaded during Germany's 1939 attack on Poland, which started World War II. One of the claimed goals of Nazi German occupation, particularly in Upper Silesia, was the extermination of those whom Nazis viewed as "subhuman", namely Jews and ethnic Poles. The Polish and Jewish population of the then Polish part of Silesia was subjected to genocide involving expulsions, mass murder and deportation to Nazi concentration camps and forced labour camps, while Germans were settled in pursuit of Lebensraum. Two thousand Polish intellectuals, politicians, and businessmen were murdered in the Intelligenzaktion Schlesien in 1940 as part of a Poland-wide Germanization program. Silesia also housed one of the two main wartime centers where medical experiments were conducted on kidnapped Polish children by Nazis. Czech Silesia was occupied by Germany as part of Sudetenland. In Silesia, Nazi Germany operated the Gross-Rosen concentration camp, several prisoner-of-war camps for Allied POWs (including the major Stalag VIII-A, Stalag VIII-B, Stalag VIII-C camps), numerous Nazi prisons and thousands of forced labour camps, including a network of forced labour camps solely for Poles (Polenlager), subcamps of prisons, POW camps and of the Gross-Rosen and Auschwitz concentration camps.

The Potsdam Conference of 1945 defined the Oder-Neisse line as the border between Germany and Poland, pending a final peace conference with Germany which never took place. At the end of WWII, Germans in Silesia fled from the battle ground, assuming they would be able to return when the war was over. However, they could not return, and those who had stayed were expelled and a new Polish population, including people displaced from former Eastern Poland annexed by the Soviet Union and from Central Poland, joined the surviving native Polish inhabitants of the region. After 1945 and in 1946, nearly all of the 4.5 million Silesians of German descent fled, or were interned in camps and expelled, including some thousand German Jews who survived the Holocaust and had returned to Silesia. The newly formed Polish United Workers' Party created a Ministry of the Recovered Territories that claimed half of the available arable land for state-run collectivized farms. Many of the new Polish Silesians who resented the Germans for their invasion in 1939 and brutality in occupation now resented the newly formed Polish communist government for their population shifting and interference in agricultural and industrial affairs.

The administrative division of Silesia within Poland has changed several times since 1945. Since 1999, it has been divided between Lubusz Voivodeship, Lower Silesian Voivodeship, Opole Voivodeship, and Silesian Voivodeship. Czech Silesia is now part of the Czech Republic, forming part of the Moravian-Silesian Region and the northern part of the Olomouc Region. Germany retains the Silesia-Lusatia region (Niederschlesien-Oberlausitz or Schlesische Oberlausitz) west of the Neisse, which is part of the federal state of Saxony.

The region was affected by the 1997, 2010 and 2024 Central European floods.

Ethnic history

Modern Silesia is inhabited by Poles, Silesians, Germans, and Czechs. Germans first came to Silesia during the Late Medieval Ostsiedlung. The last Polish census of 2011 showed that the Silesians are the largest ethnic or national minority in Poland, Germans being the second; both groups are located mostly in Upper Silesia. The Czech part of Silesia is inhabited by Czechs, Moravians, Silesians, and Poles.

In the early 19th century the population of the Prussian part of Silesia was between 2/3 and 3/4 German-speaking, between 1/5 and 1/3 Polish-speaking, with Sorbs, Czechs, Moravians and Jews forming other smaller minorities (see Table 1. below).

Before the Second World War, Silesia was inhabited mostly by Germans, with Poles a large minority, forming a majority in Upper Silesia. Silesia was also the home of Czech and Jewish minorities. The German population tended to be based in the urban centres and in the rural areas to the north and west, whilst the Polish population was mostly rural and could be found in the east and in the south.

Ethnic structure of Prussian Upper Silesia (Opole regency) during the 19th century and the early 20th century can be found in Table 2.:

The Austrian part of Silesia had a mixed German, Polish and Czech population, with Polish-speakers forming a majority in Cieszyn Silesia.

Religion

Historically, Silesia was about equally split between Catholics and Protestants (overwhelmingly Lutherans). In an 1890 census taken in the German part, Catholics made up a slight majority of 53%, while the remaining 47% were almost entirely Lutheran. Geographically speaking, Upper Silesia was mostly Catholic except for some of its northwestern parts, which were predominantly Lutheran. Lower Silesia was mostly Lutheran except for the Glatzer Land (now Kłodzko County). Generally speaking, the population was mostly Protestant in the western parts, and it tended to be more Catholic the further east one went. In Upper Silesia, Protestants were concentrated in larger cities and often identified as German. After World War II, the religious demographics changed drastically as Germans, who constituted the bulk of the Protestant population, were forcibly expelled. Poles, who were mostly Catholic, were resettled in their place. Today, Silesia remains predominantly Catholic.

Existing since the 12th century, Silesia's Jewish community was concentrated around Wrocław and Upper Silesia, and numbered 48,003 (1.1% of the population) in 1890, decreasing to 44,985 persons (0.9%) by 1910. In Polish East Upper Silesia, the number of Jews was around 90,000–100,000. Historically, the community had suffered a number of localised expulsions such as their 1453 expulsion from Wrocław. From 1712 to 1820 a succession of men held the title Chief Rabbi of Silesia ("Landesrabbiner"): Naphtali ha-Kohen (1712–16); Samuel ben Naphtali (1716–22); Ḥayyim Jonah Te'omim (1722–1727); Baruch b. Reuben Gomperz (1733–54); Joseph Jonas Fränkel (1754–93); Jeremiah Löw Berliner (1793–99); Lewin Saul Fränkel (1800–7); Aaron Karfunkel (1807–16); and Abraham ben Gedaliah Tiktin (1816–20).

Consequences of World War II

After the German invasion of Poland in 1939, following Nazi racial policy, the Jewish population of Silesia was subjected to genocide with executions performed by Einsatzgruppe z. B.V. led by Udo von Woyrsch and Einsatzgruppe I led by Bruno Streckenbach,Zagłada Żydów na polskich terenach wcielonych do Rzeszy Page 53 Aleksandra Namysło, Instytut Pamięci Narodowej—Komisja Ścigania Zbrodni przeciwko Narodowi Polskiemu – 2008 W rzeczywistości ludzie Udona von Woyr- scha podczas marszu przez województwo śląskie na wschód dopuszczali się prawdziwych masakr ludności żydowskiej. imprisonment in ghettos, and ethnic cleansing of the General Government. In their efforts to exterminate the Jews through murder and ethnic cleansing, the Germans established the Auschwitz and Gross-Rosen camps in the province of Silesia. Expulsions were carried out openly and reported in the local press. Those sent to ghettos would from 1942 be expelled to concentration and work camps. Between 5 May and 17 June, 20,000 Silesian Jews were sent to Birkenau to gas chambersThe Origins of the Final Solution: The Evolution of Nazi Jewish Policy, September 1939 – March 1942 – Page 544 Christopher R. Browning – 2007 Between 5 May and 17 June, 20,000 Silesian Jews were deported to Birkenau to be gassed. and during August 1942, 10,000 to 13,000 Silesian Jews were murdered by gassing at Auschwitz. Most Jews in Silesia were exterminated by the Nazis. After the war Silesia became a major centre for repatriation of the Jewish population in Poland which survived Nazi German extermination and in autumn 1945, 15,000 Jews were in Lower Silesia, mostly Polish Jews returned from territories now belonging to the Soviet Union, rising in 1946 to seventy thousand as Jewish survivors from other regions in Poland were relocated.

The majority of Germans fled or were expelled from the present-day Polish and Czech parts of Silesia during and after World War II. From June 1945 to January 1947, 1.77 million Germans were expelled from Lower Silesia, and 310,000 from Upper Silesia. Today, most German Silesians and their descendants live in the territory of the Federal Republic of Germany, many of them in the Ruhr area working as miners, like their ancestors in Silesia. One of its most notable but controversial spokesmen was the Christian Democratic Union politician Herbert Hupka.

The expulsion of Germans led to widespread underpopulation. The population of the town of Głogów fell from 33,500 to 5,000, and from 1939 to 1966 the population of Wrocław fell by 25%. Attempts to repopulate Silesia proved unsuccessful in the 1940s and 1950s, and Silesia's population did not reach pre-war levels until the late 1970s. The Polish settlers who repopulated Silesia were partly from the former Polish Eastern Borderlands, which was annexed by the Soviet Union in 1939. Wrocław was partly repopulated with refugees from the formerly Polish city of Lwów.

Geography

Most of Silesia is relatively flat, although its southern border is generally mountainous. It is primarily located in a swath running along both banks of the upper and middle Oder (Odra) River, but it extends eastwards to the upper Vistula River. The region also includes many tributaries of the Oder, including the Bóbr (and its tributary the Kwisa), the Barycz and the Nysa Kłodzka. The Sudeten Mountains run along most of the southern edge of the region, though at its south-eastern extreme it reaches the Silesian Beskids and Moravian-Silesian Beskids, which belong to the Carpathian Mountains range.

Historically, Silesia was bounded to the west by the Kwisa and Bóbr Rivers, while the territory west of the Kwisa was in Upper Lusatia (earlier Milsko). However, because part of Upper Lusatia was included in the Province of Silesia in 1815, in Germany Görlitz, Niederschlesischer Oberlausitzkreis and neighbouring areas are considered parts of historical Silesia. Those districts, along with Poland's Lower Silesian Voivodeship and parts of Lubusz Voivodeship, make up the geographic region of Lower Silesia.

Silesia has undergone a similar notional extension at its eastern extreme. Historically, it extended only as far as the Brynica River, which separates it from Zagłębie Dąbrowskie in the Lesser Poland region. However, to many Poles today, Silesia (Śląsk) is understood to cover all of the area around Katowice, including Zagłębie. This interpretation is given official sanction in the use of the name Silesian Voivodeship (województwo śląskie) for the province covering this area. In fact, the word Śląsk in Polish (when used without qualification) now commonly refers exclusively to this area (also called Górny Śląsk or Upper Silesia).

As well as the Katowice area, historical Upper Silesia also includes the Opole region (Poland's Opole Voivodeship) and Czech Silesia. Czech Silesia consists of a part of the Moravian-Silesian Region and the Jeseník District in the Olomouc Region.

Natural resources

Silesia is a resource-rich and populous region. Since the middle of the 18th century, coal has been mined. The industry had grown while Silesia was part of Germany, and peaked in the 1970s under the People's Republic of Poland. During this period, Silesia became one of the world's largest producers of coal, with a record tonnage in 1979. Coal mining declined during the next two decades, but has increased again following the end of Communist rule.

The 41 coal mines in Silesia are mostly part of the Upper Silesian Coal Basin, which lies in the Silesian Upland. The coalfield has an area of about 4,500 km2. Deposits in Lower Silesia have proven to be difficult to exploit and the area's unprofitable mines were closed in 2000. In 2008, an estimated 35 billion tonnes of lignite reserves were found near Legnica, making them some of the largest in the world.

From the fourth century BC, iron ore has been mined in the upland areas of Silesia. The same period had lead, copper, silver, and gold mining. Zinc, cadmium, arsenic, and uranium have also been mined in the region. Lower Silesia features large copper mining and processing between the cities of Legnica, Głogów, Lubin, and Polkowice. In the Middle Ages, gold () and silver () were mined in the region, which is reflected in the names of the former mining towns of Złotoryja, Złoty Stok and Srebrna Góra.

The region is known for stone quarrying to produce limestone, marl, marble, and basalt.

The region also has a thriving agricultural sector, which produces cereals (wheat, rye, barley, oats, corn), potatoes, rapeseed, sugar beets and others. Milk production is well developed. The Opole Silesia has for decades occupied the top spot in Poland for their indices of effectiveness of agricultural land use.

Mountainous parts of southern Silesia feature many significant and attractive tourism destinations (e.g., Karpacz, Szczyrk, Wisła). Silesia is generally well forested. This is because greenness is generally highly desirable by the local population, particularly in the highly industrialized parts of Silesia.

Demographics

Silesia has been historically diverse in every aspect. Nowadays, the largest part of Silesia is located in Poland; it is often cited as one of the most diverse regions in that country.

The United States Immigration Commission, in its Dictionary of Races or Peoples (published in 1911, during a period of intense immigration from Silesia to the United States), considered Silesian as a geographical (not ethnic) term, denoting the inhabitants of Silesia. It is also mentioned the existence of both Polish Silesian and German Silesian dialects in that region.

Cities and towns

The following table includes the cities and towns in Silesia with a population greater than 20,000 (2022).

Old Town Hall in Wrocław, September 2022 07.jpg|Wrocław Masarykovo namesti.jpg|Ostrava Katowice Rynek.jpg|Katowice 6588vik Gliwice. Foto Barbara Maliszewska.jpg|Gliwice Ratusz Bielsko-Biała.JPG|Bielsko-Biała Zabrze post office.jpg|Zabrze Rynek w Bytomiu 2020.jpg|Bytom Ratusz i Stary Rynek w Zielonej Górze.jpg|Zielona Góra Rynek w Rybniku 1.JPG|Rybnik Plac Jana Pawła II w Nowym Bytomiu.jpg|Ruda Śląska Opole 0001.7 - widok na Stare Miasto.jpg|Opole Tychy Stare. Rynek1.JPG|Tychy Chorzów - Teatr Rozrywki 01.JPG|Chorzów Wałbrzych - Rynek 03.jpg|Wałbrzych Legnica - Rynek - Dawny Ratusz 01.jpg|Legnica Pałac w Boryni 7.JPG|Jastrzębie-Zdrój Horni-namesti1.jpg|Opava SM Brzeg Ratusz 2023 (1).jpg|Brzeg 2014 Nowa Ruda, rynek 01.JPG|Nowa Ruda Bohumin radnice.jpg|Bohumín

Flags and coats of arms

The emblems of Lower Silesia and Upper Silesia originate from the emblems of the Piasts of Lower Silesia and Upper Silesia. The coat of arms of Upper Silesia depicts the golden eagle on the blue shield. The coat of arms of Lower Silesia depicts a black eagle on a golden (yellow) shield. Main article: Coat of arms of Silesia

File:DEU Oberschlesien 1926-1945 COA.svg|Coat of arms of the Prussian province of Upper Silesia (1919–1938 and 1941–1945) File:POL województwo śląskie COA.svg|Coat of arms of the Silesian Voivodeship File:POL województwo opolskie COA.svg|The coat of arms of the Opolskie Voivodeship File:Henryk I Probus herb.png|Coat of arms of Duke Henry Probus File:Wappen Herzogtum Schlesien.png|Coat of arms of Austrian Silesia (1742–1918) File:Wappen Provinz Niederschlesien.png|Prussian province of Lower Silesia (1919–1938 and 1941–1945) File:POL województwo dolnośląskie COA.svg|Coat of arms of the Lower Silesia Voivodeship File:Znak Slezska.svg|Coat of arms of Czech Silesia Flags with their colors refer to the coat of arms of Silesia. File:Flagge Preußen - Provinz Oberschlesien.svg|Flag of Prussian Upper Silesia province (1919–1938 and 1941–1945) File:POL województwo śląskie flag.svg|Flag of Silesia Voivodeship File:Flag of Czech Silesia.svg|Flag of the Austrian Silesia (1742–1918), and Czech Silesia File:Flagge Preußen - Provinz Schlesien.svg|Flag of Prussian Lower Silesia province (1919–1938 and 1941–1945) File:POL województwo dolnośląskie flag.svg|Flag of Lower Silesia Voivodeship

World Heritage Sites

File:Swidnica- Kosciol Pokoju 02.jpg|Churches of Peace, Świdnica and Jawor File:Wrocław - Jahrhunderthalle5.jpg|Centennial Hall, Wrocław File:SZTOLNIA GŁĘBOKA FRYDERYK - część trasy turystycznej pn. Sztolnia Czarnego Pastrąga.jpg|Historic Silver Mine, Tarnowskie Góry File:Das Neue Schloss im Park.jpg|Muskau Park, Łęknica and Bad Muskau

Notes

References

Sources

References

1. "EU regions by GDP, Eurostat".
2. {{Cite American Heritage Dictionary. Silesia
3. "Silesia". [[HarperCollins]].
4. "Silesia". [[Oxford University Press]].
5. {{Cite Merriam-Webster. Silesia
6. Zbigniew Babik, "Najstarsza warstwa nazewnicza na ziemiach polskich w granicach średniowiecznej Słowiańszczyzny", Uniwersitas, Kraków, 2001.
7. Rudolf Fischer. Onomastica slavogermanica. Uniwersytet Wrocławski. 2007. t. XXVI. 2007. str. 83
8. (2006). "Wandalen". de Gruyter.
9. Andreas Lawaty, Hubert Orłowski. (2003). "Deutsche und Polen: Geschichte, Kultur, Politik". C.H.Beck.
10. R. Żerelik(in:) M. Czpliński (red.) Historia Śląska, Wrocław 2007, pp. 34–35
11. R. Żerelik(in:) M. Czpliński (red.) Historia Śląska, Wrocław 2007, pp. 37–38
12. R. Żerelik(in:) M. Czpliński (red.) Historia Śląska, Wrocław 2007, pp. 21–22
13. Zientara, Benedykt. (1975). "Walonowie na Śląsku w XII i XIII wieku".
14. R. Żerelik(in:) M. Czpliński (red.) Historia Śląska, Wrocław 2007, p. 81
15. [http://www.gonschior.de/weimar/Preussen/Oberschlesien/Volksentscheide.html gonschior.de] (in German)
16. Piotr Eberhardt, Political Migrations in Poland, 1939–1948, Warsaw 2006, p.25
17. Wardzyńska, Maria. (2009). "Był rok 1939. Operacja niemieckiej policji bezpieczeństwa w Polsce. Intelligenzaktion". [[Institute of National Remembrance.
18. Kamila Uzarczyk: Podstawy ideologiczne higieny ras. Toruń: Wydawnictwo Adam Marszałek, 2002, pp. 285, 286, 289. {{ISBN. 83-7322-287-1.
19. Geoffrey K. Roberts, Patricia Hogwood. (2013). "The Politics Today Companion to West European Politics". Oxford University Press.
20. Lukowski, Zawadski, Jerzy, Hubert. (2006). "A Concise History of Poland". Cambridge University Press.
21. Weinhold, Karl. (1887). "Die Verbreitung und die Herkunft der Deutschen in Schlesien". J. Engelhorn.
22. Jobst Gumpert. (1966). "Polen, Deutschland". Callwey.
23. Hunt Tooley, T (1997). ''National Identity and Weimar Germany: Upper Silesia and the Eastern Border, 1918–1922,'' University of Nebraska Press, p.17.
24. Ładogórski, Tadeusz. (1966). "Ludność, in: Historia Śląska, vol. II: 1763–1850, part 1: 1763–1806". edited by W. Długoborski.
25. Georg Hassel. (1823). "Statistischer Umriß der sämmtlichen europäischen und der vornehmsten außereuropäischen Staaten, in Hinsicht ihrer Entwickelung, Größe, Volksmenge, Finanz- und Militärverfassung, tabellarisch dargestellt; Erster Heft: Welcher die beiden großen Mächte Österreich und Preußen und den Deutschen Staatenbund darstellt". Verlag des Geographischen Instituts Weimar.
26. Paul Weber. (1913). "Die Polen in Oberschlesien: eine statistische Untersuchung". Verlagsbuchhandlung von Julius Springer.
27. (1958). "Stosunki narodowościowe na Śląsku w świetle relacji pruskich urzędników z roku 1882". Śląski Kwartalnik Historyczny Sobótka.
28. Paul Weber. (1913). "Die Polen in Oberschlesien: eine statistische Untersuchung". Verlagsbuchhandlung von Julius Springer.
29. Chromik, Grzegorz. "Geschichte des deutsch-slawischen Sprachkontaktes im Teschener Schlesien".
30. [[Meyers Konversations-Lexikon. Meyers Konversationslexikon]] 5. Auflage
31. Demshuk, A (2012) The Lost German East: Forced Migration and the Politics of Memory, 1945–1970, Cambridge University Press P40
32. Kamusella, T (2007). ''Silesia and Central European nationalisms: the emergence of national and ethnic groups in Prussian Silesia and Austrian Silesia, 1848–1918,'' Purdue University Press, p.173.
33. Christopher R. Browning (2000). ''Nazi Policy, Jewish Workers, German Killers,'' Cambridge University Press, 2000, p.147.
34. van Straten, J (2011) The Origin of Ashkenazi Jewry: The Controversy Unravelled, Walter de Gruyter P58
35. . ["Silesia"](http://www.jewishencyclopedia.com/articles/7747-hirschberg). *JewishEncyclopedia.com*.
36. Popularna encyklopedia powszechna – Volume 10 – Page 660 Magdalena Olkuśnik, Elżbieta Wójcik – 2001 Streckenbach Bruno (1902–1977), funkcjonariusz niem. państwa nazistowskiego, Gruppenfuhrer SS. Od 1933 szef policji po- lit w Hamburgu. 1939 dow. Einsatzgruppe I (odpowiedzialny za eksterminacje ludności pol. i żydowskiej na Śląsku).
37. Steinbacher, S. "In the Shadow of Auschwitz, The murder of the Jews of East Upper Silesia", in Cesarani, D. (2004) ''Holocaust: From the persecution of the Jews to mass murder,'' Routledge, P126
38. Steinbacher, S. "In the Shadow of Auschwitz, The murder of the Jews of East Upper Silesia", in Cesarani, D. (2004) ''Holocaust: From the persecution of the Jews to mass murder,'' Routledge, pp.110–138.
39. Christopher R. Browning (2007). ''The Origins of the Final Solution: The Evolution of Nazi Jewish Policy, September 1939 – March 1942,'' University of Nebraska Press, p.544.
40. The International Jewish Labor Bund After 1945: Toward a Global History David Slucki, page 63
41. A narrow bridge to life: Jewish forced labor and survival in the Gross-Rosen camp system, 1940–1945, page 229 Belah Guṭerman
42. Kochavi, AJ (2001)Post-Holocaust politics: Britain, the United States & Jewish refugees, 1945–1948, University of North Carolina Press P 176
43. Kochavi, AJ (2001). ''Post-Holocaust politics: Britain, the United States & Jewish refugees, 1945–1948,'' University of North Carolina Press, p.176.
44. DB Klusmeyer & DG Papademetriou (2009). ''Immigration policy in the Federal Republic of Germany: negotiating membership and remaking the nation,'' Berghahn, p.70.
45. Scholz, A (1964). ''Silesia: yesterday and today,'' Martinus Nijhoff, The Hague, p.69.
46. Mazower, M (1999). ''Dark Continent: Europe's 20th Century,'' Penguin, p.223.
47. "Natural Resources | poland.gov.pl". En.poland.gov.pl.
48. "Mamy największe złoża węgla brunatnego na świecie". Gazetawyborcza.pl.
49. S.Z. Mikulski, "Late-Hercynian gold-bearing arsenic-polymetallic mineralization within Saxothuringian zone in the Polish Sudetes, Northeast Bohemian Massif". In: "Mineral Deposit at the Beginning of the 21st Century", A. Piestrzyński et al. (eds). Swets & Zeitinger Publishers [https://books.google.com/books?id=DcUk9rlWHuEC&pg=PA787&lpg=PA787 (Google books)]
50. "Wise International | World Information Service on Energy". 0.antenna.nl.
51. (28 July 2011). "Copper: World Smelter Production, By Country". Indexmundi.com.
52. (1 July 2004). "Zinc: World Smelter Production, By Country". Indexmundi.com.
53. (13 August 2004). "Silver: World Mine Production, By Country". Indexmundi.com.
54. (18 May 2012). "Cadmium: World Refinery Production, By Country". Indexmundi.com.
55. (24 June 2005). "Lead: World Refinery Production, By Country". Indexmundi.com.
56. "Samorząd Województwa Opolskiego". Umwo.opole.pl.
57. (1911). "Dictionary of Races or Peoples". Washington, Government Printing Office.
58. (1911). "Dictionary of Races or Peoples". Washington, Government Printing Office.
59. Łęknica and Bad Muskau were considered part of Silesia in years 1815–1945.