The first round of the partly free parliamentary elections took place on 4 June 1989. They were the first elections in Poland since the Communist Polish United Workers Party abandoned its monopoly of power in April 1989. Solidarity won all but one of the 100 seats in the Senate, and all of the contested seats in the Sejm. The elections paved the way for the creation of Tadeusz Mazowiecki’s cabinet and a peaceful transition to democracy. On the international level, this election is seen as one of the major milestones in the fall of communism (“Autumn of Nations”) in Central and Eastern Europe.