Although Czechoslovakia was the only central European country to remain a parliamentary democracy during the entire period 1918 to 1938, it faced problems with ethnic minorities such as Hungarians, Poles and Sudeten Germans, which made up the largest part of the country's German minority.The Germans constituted 3 to 3.5 million out of 14 million of the interwar population …

Early history. The ancestors of the Czechs and the Slovaks were united in the so-called Samo's Empire for about 30 years in the 7th century. The ancestors of the Slovaks and the Moravians were later united in Great Moravia between 833 and 907. The Czechs were part of Great Moravia for only about seven years before they split from it in 895.

The Velvet Revolution (Czech: Sametová Revoluce) or Gentle Revolution (Slovak: Nežná Revolúcia) was a non-violent transition of power in what was then Czechoslovakia, occurring from 17 November to 28 November 1989.Popular demonstrations against the one-party government of the Communist Party of Czechoslovakia included students and older dissidents.