Anniversaries. 90 years of history of 1 May parades. The half-millionth tonne of steel has been made in the blast furnace of the Katowice Steelworks. Advanced works on construction of the blast furnace no. 2. “Prasa-Książka-Ruch” is celebrating its 30th anniversary. The Romanian Cepelia. 300th anniversary of the Palace in Wilanów.