Originally scheduled for the end of 1957, but postponed several times, the Third Congress of the Polish United Workers Party (PZPR—Polska Zjednoczona Partia Robotnicza) finally held its meetings on March 10-19, 1959, in Warsaw's palace of culture. A total of 1,431 delegates represented a rank-and-file membership of slightly over one million. Five years had passed since the previous gathering of this kind, and much had taken place during the interval. The so-called thaw of 1955-56 reached its culmination point in October, 1956, with the return to power of Wladyslaw Gomulka.
Faced with an imminent breakdown of PZPR authority throughout the country, Gomulka was forced to relax Communist pressure in three vital areas: freedom of speech; collectivization of agriculture, which had almost completely collapsed; and religion, in which the Catholic church hierarchy was again allowed to control its own appointments and resume the teaching of catechism in public schools.