Czechoslovakia - Receive Czechoslovak journalists G.Gusakom. GDR - V.Ulbriht and others at the opening of the exhibition dedicated to the 20th anniversary of the GDR. Czechoslovakia - September Plenum of the Central Committee of the CPC. Czechoslovakia - Meeting of the Czechoslovak Union of anti-fascist fighters. Hungary - VII National Federation Peace Congress. Romania, Yugoslavia - Meeting of Ceausescu and Tito in the construction of hydroelectric power station on the Danube.