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), are a West Slavic ethnic group and a nation native to the Czech Republic in Central Europe, who share a common ancestry, culture, history and are native speakers of the Czech language.Ethnic Czechs were called Bohemians in English until the early 20th century, referring to the medieval land of Bohemia which in turn was adapted from late Iron Age tribe of Celtic Boii.
According to legend, it comes from their leader Čech, who brought them to Bohemia.
Research regards Čech as a derivative of the root čel- (member of the people, kinsman).
The 18th and 19th century is characterized by the Czech National Revival, focusing to revive Czech culture and national identity.
Since the turn of the 20th century, Chicago is the city with the third largest Czech population, after Prague and Vienna.
The second half of the 13th century was a period of advancing German immigration into the Czech lands.
The number of Czechs who have at least partly German ancestry today probably runs into hundreds of thousands.
The German language was made equal to the Czech language.
Czech patriotic authors tend to call the following period, from 1620 to 1648 until the late 18th century, the "Dark Age".
A group of scientists suggested that the high frequency of a gene mutation causing cystic fibrosis in Central European (including Czech R.) and Celtic populations proves a proto-Celtic population origin, besides the Slavic, in the Czech population.
According to a popular myth, the Slavs came with Forefather Čech who settled at the Říp Mountain.
Czech (Slavic) people have a long history of coexistence with Germanic people.