The lecture introduces the development of Czechoslovak political history after the Second World War. It points out the causes of the victory of the communist system in Central Europe and Czechoslovakia, explains the key problems of the application of the Soviet system of bureaucratic socialism to the Czechoslovak reality and deals in detail with all the peripetia of its Czechoslovak form in four decades: since Communist Coup d'Etat in 1948, through the period of "Sharp Stalinism", the subsequent conservative destalinization, the period of Antonín Novotný's liberalization to the process of Czechoslovak reform of the "Prague Spring" and its elimination by the occupation by the armies of the Warsaw Treaty, followed by the twenty years of so-called "Normalization" (1969-1989). The topic of the lectures culminates in the so-called "Velvet Revolution" in Czechoslovakia (1989) and the crisis of the Czechoslovak Federal Republic (1990-1992). 1. Roots of the post-war Czechoslovak republic, Moscow negotiations, Government Program of Košice 2. Characteristics of the Third Republic - decrees of the President of the Republic, system of the National Front, the expulsion of Germans from Czechoslovakia 3. The escalation of the crisis of the National Front, political conflicts between the Communist Party and non-communist parties 4. Communist Coup d'Etat in February 1948 5. Stalinism in Czechoslovakia - elimination of the opponets, political and judicial repression, show trials, "third resistance", monetary reform in 1953, death of Stalin and Gottwald 6. Period of "Destalinization" in Czechoslovakia 7. Ideology of the "Consummation of Socialism in Czechoslovakia", socialist constitution of Czechoslovakia (1960), political rehabilitations 8. The "Golden Sixties" and Antonín Novotný's Era - political, economic, cultural and national development of Communist politics of Czechoslovakia 9. Prague Spring of 1968 and its suppression 10. The start of "Normalization" - from August 1968 to Lessons from Crisis Development (1970), eestoration of persecutions 11. Normalization in Czechoslovakia - basic tendencies of Czechoslovakian policy in the years 1971-1989 12. Charter 77, dissent, exile, samizdat and anti-regime activities in the 1970s and 1980s 13. From Leopold Lér to Milouš Jakeš - economic stagnation of the Normalization regime, the process of "Perestroika" in late 1980s 14. Velvet Revolution in 1989 15. Rise and fall of the democratic federation of Czechoslovakia (1990-1992)