About Tadeusz Mazowiecki
Tadeusz Mazowiecki was a Polish author, journalist, philanthropist and politician, formerly one of the leaders of the Solidarity movement, and the first non-communist Polish prime minister since 1946, having held the post from 1989 to 1991. While the Communists and their satellites were guaranteed a majority in the legislature, Solidarity won all of the contested seats in a historic landslide. Having left the Sejm, Mazowiecki became the head of Warsaw chapter of the Club of Catholic Intelligentsia and one of the best-known Polish dissidents.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.