On April 21, 1988, 5000 workers of Stalowa Wola Steelworks organized a meeting, during which they demanded end of repressions of Solidarity activists, and 20,000 złoty salary increase [REF].
On May 1, 1988, opposition activists organized peaceful demonstrations in several Polish cities, such as Bielsko-Biała, Dąbrowa Górnicza, Gdańsk, Kraków, Łódź, Płock, Poznań, Warsaw, and Wrocław.