Sudeten Germans in the context of "Sudetenland"

The Munich Agreement was reached in Munich on 30 September 1938, by Nazi Germany, the United Kingdom, France, and Italy. The agreement provided for the German annexation of part of Czechoslovakia called the Sudetenland, where three million people, mainly ethnic Germans, lived. The pact is known in some areas as the Munich Betrayal (Czech: Mnichovská zrada; Slovak: Mníchovská zrada), because of a previous 1924 alliance agreement and a 1925 military pact between France and the Czechoslovak Republic.

Germany had started a low-intensity undeclared war on Czechoslovakia on 17 September 1938. In reaction, Britain and France on 20 September formally requested Czechoslovakia cede the Sudetenland territory to Germany. This was followed by Polish and Hungarian territorial demands brought on 21 and 22 September, respectively. Meanwhile, German forces conquered parts of the Cheb District and Jeseník District, where battles included use of German artillery, Czechoslovak tanks, and armored vehicles. Lightly armed German infantry briefly overran other border counties before being repelled. Poland grouped its army units near its common border with Czechoslovakia and conducted an unsuccessful probing offensive on 23 September. Hungary moved its troops towards the border with Czechoslovakia, without attacking. The Soviet Union announced its willingness to come to Czechoslovakia's assistance, provided the Red Army would be able to cross Polish and Romanian territory; both countries refused.

The Sudetendeutsches Freikorps (SFK) (Sudeten German Free Corps, also known as the Freikorps Sudetenland, Freikorps Henlein and Sudetendeutsche Legion) was a paramilitary organization founded on 17 September 1938 in Germany on direct order of Adolf Hitler. The organization was composed mainly of ethnic German citizens of Czechoslovakia with pro-Nazi sympathies who were sheltered, trained and equipped by the German army and who conducted cross-border terrorist operations into Czechoslovak territory from 1938 to 1939. They played an important role in Hitler's successful effort to occupy Czechoslovakia and annex the region known as Sudetenland into the Third Reich under Nazi Germany.

The Sudetendeutsches Freikorps was a successor to Freiwilliger Schutzdienst, also known as Ordnersgruppe, an organization established by the Sudeten German Party in Czechoslovakia unofficially in 1933 and officially on 17 May 1938, following the example of the Sturmabteilung, the original paramilitary wing of the German Nazi Party. Officially registered as a promoter organization, the Freiwilliger Schutzdienst was dissolved on 16 September 1938 by the Czechoslovak authorities due to its implication in many criminal and terrorist activities. Many of its members as well as leadership, wanted for arrest by Czechoslovak authorities, had moved to Germany where they became the basis of the Sudetendeutsches Freikorps, conducting the Freikorps' first cross-border raids into Czechoslovakia only a few hours after its official establishment. Due to the smooth transition between the two organizations, similar membership, Nazi Germany's sponsorship and application of the same tactic of cross-border raids, some authors often do not particularly distinguish between the actions of Ordner (i.e. up to 16 September 1938) and Freikorps (i.e. from 17 September 1938).

Gregor Johann Mendel OSA (/ˈmɛndəl/; German: [ˈmɛndl̩]; Czech: Řehoř Jan Mendel; 20 July 1822 – 6 January 1884) was an Austrian biologist, meteorologist, mathematician, Augustinian friar and abbot of St. Thomas' Abbey in Brno (Brünn), Margraviate of Moravia. Mendel was born in a German-speaking family in the Silesian part of the Austrian Empire (today's Czech Republic) and gained posthumous recognition as the founder of the modern science of genetics. Though farmers had known for millennia that crossbreeding of animals and plants could favor certain desirable traits, Mendel's pea plant experiments conducted between 1856 and 1863 established many of the rules of heredity, now referred to as the laws of Mendelian inheritance.

Mendel worked with seven characteristics of pea plants: plant height, pod shape and color, seed shape and color, and flower position and color. Taking seed color as an example, Mendel showed that when a true-breeding yellow pea and a true-breeding green pea were cross-bred, their offspring always produced yellow seeds. However, in the next generation, the green peas reappeared at a ratio of 1 green to 3 yellow. To explain this phenomenon, Mendel coined the terms "recessive" and "dominant" in reference to certain traits. In the preceding example, the green trait, which seems to have vanished in the first filial generation, is recessive, and the yellow is dominant. He published his work in 1866, demonstrating the actions of invisible "factors"—now called genes—in predictably determining the traits of an organism. The actual genes were only discovered in a long process that ended in 2025 when the last three of the seven Mendel genes were identified in the pea genome.

The Zipser Germans, Zipser Saxons, or, simply, just Zipsers (German: Zipser or Zipser Deutsche, Romanian: Țipțeri, Hungarian: Cipszer, Cipszerek, or Szepességi szászok, Slovak: Spišskí Nemci) are a German-speaking (more specifically Zipser German-speaking as native dialect) sub-ethnic group in Central-Eastern Europe, part of the German diaspora, and national minority in both Slovakia and Romania (there are also Zipser German settlements in the Zakarpattia Oblast, in the historical region of Carpathian Ruthenia, present-day western Ukraine). Along with the Sudeten Germans (German: Sudetendeutsche), the Zipser Germans were one of the two most important ethnic German groups in the former Czechoslovakia. An occasional variation of their name as 'Tzipsers' can also be found in academic articles. Former Slovak President Rudolf Schuster is partly Zipser German and grew up in Medzev (German: Metzenseifen).

The Zipser Germans were previously native to the Szepes County (German: Zips; Slovak: Spiš, Hungarian: Szepes) of Upper Hungary—today mostly north-eastern Slovakia—as that region was settled by colonists from present-day central Germany (and other parts of contemporary Germany) during the High Middle Ages, more specifically beginning in the mid 12th century, as part of the Ostsiedlung. Beginning in at least the 18th century, many members of this German ethnic sub-group migrated to southern Bukovina, Maramureș, Transylvania, and in the mountainous Banat (all of the aforementioned regions situated in contemporary Romania). Most of the Zipser German community in Romania lives in Maramureș County and across the Rodna Mountains respectively.

Josef Hoffmann (15 December 1870 – 7 May 1956) was an Austrian-Moravian architect and designer. He was among the founders of Vienna Secession and co-establisher of the Wiener Werkstätte. His most famous architectural work is the Stoclet Palace, in Brussels, (1905–1911) a pioneering work of Modern Architecture, Art Deco and peak of Vienna Secession architecture.

Konrad Ernst Eduard Henlein (6 May 1898 – 10 May 1945) was a Sudeten German politician in Czechoslovakia before World War II. After Nazi Germany invaded and occupated Czechoslovakia he became the Gauleiter and Reichsstatthalter of Reichsgau Sudetenland.

Born in the Austro-Hungarian Empire in 1898, Henlein served in the Austro-Hungarian Army in World War I. The Austrian Empire collapsed after that, and the Sudetenland, where Henlein lived, became part of newly created Czechoslovakia.