September 11th: Hungary lifts border restrictions for visitors from East Germany, the now defunct DDR. Many DDR citizens flood into Austria in their tiny Trabant cars (Trabbies) and from there travel to West Germany.
September 12th: Solidarity, the party born out of the independent trade union in the Gdansk shipyard, takes power in Poland.
October 1st: Another mass of DDR citizens is allowed to leave the Eastern Bloc after seeking sanctuary in the gardens of the West German embassy in Prague.
October 6th-10th: The Hungarian Communist Party restyles itself the Hungarian Socialist Party and pledges reforms.
October 17th: Hungarian parliament proclaims multi-party elections.
October 18th: Eric Honecker, the hardline communist leader of the DDR, resigns.
October 26th: The Warsaw Pact, the communist mirror image of the western North Atlantic Treaty Organisation, renounces the so-called Brezhnev Doctrine, removing its raison d'etre.
November 9th: The Berlin Wall falls: the most fixed point of reference of the division of Europe since its construction in 1961 vanishes overnight.
November 10th: Bulgarian communist leader Todor Zhivkov resigns.
November 17th: Mass demonstrations demanding reform start in Prague heralding the so-called Velvet Revolution.
November 24th: Czechoslovak communist leader Milos Jakes resigns.
November 30th: Czechoslovakia proclaimed a multi-party state.
December 1st: East German parliament abolishes Communist Party's monopoly of power; unification of Germany becomes inevitable.
December 13th: Bulgarian Communist Party renounces its monopoly of power.
December 17th: Anti-communist demonstrations begin in provincial Romanian city of Timisoara.
December 22nd: Government buildings stormed in Romanian capital, Bucharest.
December 25th: Romanian dictator Nicolae Ceausescu and his wife executed.
December 28th: Vaclav Havel becomes President of Czechoslovakia.