Alexander Dubček
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.
If you mean during the Prague Spring, then no.
Prague.
Leader's attitudes, actions and priorities
Prague
In Prague there is a famous Prague Astronomical Clock or Prague Orloj, to which I think you are referring. see the link below.
Leonid Brezhnev
There was no single leader during WW1. Each country had their own leader.
Prague was capital of Czechoslovakia
Prague was created in 885.
The address of the Prague Historical Society Inc is: 8601 Nbu, Prague, OK 74864
There are many websites which list Prague apartments. Some of these include e-Apartment Prague, Hostelworld, Oh Prague, Prague Apartments-K and Stop City.