From the 11th until the early 20th century, present-day Slovakia was under Hungarian rule. The Slovak national revival was begun in the 19 century by intellectuals seeking to revive the Slovak language and culture. The formation of the Czechoslovak Republic in 1918 following World War I satisfied the common aspirations of Czechs and Slovaks for independence from the Habsburg Empire.
Although Czechoslovakia was the only east-central European country to remain a parliamentary democracy from 1918 to 1938, it was plagued with minority problems, the most important of which concerned the country's large German population. In 1938, the Allies concluded the Munich agreement which forced Czechoslovakia to cede the predominantly German region known as Sudetenland to Germany. Then, in March 1939 Germany invaded what remained of Bohemia and Moravia and established a German protectorate. Slovakia had already declared its independence on March 14, 1939, and had become a Nazi German puppet state led by Jozef Tiso.
On August 29, 1944, 60,000 Slovak troops organized by the underground rose up against the Nazis and the Tiso regime in what became known as the Slovak National Uprising. Although ultimately unsuccessful, this act of resistance became an important historical landmark for the Slovaks. At the close of World War II, Soviet troops overran all of Slovakia, Moravia, and much of Bohemia.
Reunited after the war, the Czechs and Slovaks held elections in 1946. In Slovakia, the Democratic Party won the elections, but the Czechoslovak Communist Party won 38% of the total vote in Czechoslovakia and eventually seized power, in February 1948. The next four decades were characterized by strict communist rule, interrupted only briefly in 1968 when Alexander Dubcek, a Slovak, became party leader. Dubcek proposed political, social, and economic reforms in his effort to make "socialism with a human face" a reality. Concern among other Warsaw Pact governments that Dubcek had gone too far led to the invasion and occupation of Czechoslovakia on August 21, 1968, by Soviet, Hungarian, Bulgarian, East German, and Polish troops. Dubcek was removed as party leader and replaced by another Slovak, Gustav Husak, in April 1969.
The 1970s and 1980s became known as the period of "normalization," in which the apologists for the 1968 Soviet invasion prevented, as best they could, any opposition to their conservative regime. Political, social, and economic life stagnated. Because the center of the reform movement had been in Prague, normalization was less harshly felt in Slovakia. In fact, the Slovak Republic saw comparatively high economic growth in the 1970s and 1980s relative to the Czech Republic.
The 1970s were also characterized by the development of a dissident movement, especially in the Czech Republic. On January l, 1977, more than 250 human rights activists signed a manifesto called Charter 77, which criticized the government for failing to meet its human rights obligations.
On November 17, 1989, a series of public protests known as the "Velvet Revolution" began and led to the downfall of communist rule in Czechoslovakia. A transition government was formed in December 1989, and the first free elections in Czechoslovakia since 1948 took place in June 1990. In 1992, negotiations on the new federal constitution deadlocked over the issue of Slovak autonomy, and in the latter half of 1992, agreement was reached to peacefully divide Czechoslovakia. On January 1, 1993, the Czech Republic and the Slovak Republic were simultaneously and peacefully founded. Both states attained immediate recognition from the U.S. and their European neighbors.