The first demonstrations took place in January 1989. Protesters marking 20 years since Jan Palach self-immolated in protest against the Soviet-led invasion of 1968 were brutally dispersed by police.
The next protest was held on October 28, 1989, the anniversary of the founding of Czechoslovakia in 1918.
November 17, 1989: the biggest protest for 20 years.
On November 19, riot police blocked a bridge to prevent protesters marching to Prague Castle.
On November 21, more than 200,000 demonstrators took to the streets of Prague for a fifth consecutive day of protests.
Vaclav Havel addressed the massive crowd from a balcony overlooking Wenceslas Square.
Half a million people came to listen to speeches from Havel and other opposition leaders.
Wenceslas Square, December 19, 1989.
On December 29, 1989, Vaclav Havel and his wife, Olga, greeted citizens at Prague Castle after being appointed by the Federal Assembly as the new president of Czechoslovakia
December 31, 1989.