Prague Spring contributed to the end of the USSR by the invasion of Czechoslovakia. The Prague Spring started in the year of 1968 and ended in the years of 1993.
The Prague Spring began on 5th of January, 1968 as the reformer Dubcek came to power, and was ended by a Soviet invasion on 21st of August, 1968.
USSR in Construction ended in 1941.
Honoured Pilot of the USSR ended in 1988.
It signaled the end of the USSR
The U.S.S.R collapsed on December 8, 1991
The Prague Spring was a period of political liberalization in Czechoslovakia during the era of its domination by the Soviet Union after World War II. The Prague Spring ended with a Soviet invasion, the removal of Alexander Dubcek as party leader and an end to reform within Czechoslovakia.
The Prague Spring began on 5th of January, 1968 as the reformer Dubcek came to power, and was ended by a Soviet invasion on 21st of August, 1968.
Prague groschen ended in 1547.
Dukla Prague ended in 1996.
Cinema Prague ended in 2009.
Prague Quartet ended in 1955.
Lovers in Prague ended on 2005-11-20.
USSR in Construction ended in 1941.
The Prague Spring was a period of political liberalization in Czechoslovakia during the era of its domination by the Soviet Union after World War II. It began on January 5, 1968, when reformist Slovak Alexander Dubček came to power, and continued until August 21, when the Soviet Union and members of its Warsaw Pact allies invaded the country to halt the reforms. The Prague Spring reforms were an attempt by Dubček to grant additional rights to the citizens in an act of partial decentralization of the economy and democratization. The freedoms granted included a loosening of restrictions on the media, speech and travel. Dubček also federalized the country into two separate republics; this was the only change that survived the end of the Prague Spring. So, to answer your question specifically, the 1968 Prague Spring was ended when the Soviet Union and members of its Warsaw Pact allies invaded the country to halt the reforms.
Honoured Pilot of the USSR ended in 1988.
Honoured Inventor of the USSR ended in 1991.
Honoured Navigator of the USSR ended in 1988.