Warsaw: the unveiling of the mausoleum of Władysław Kniewski, Henryk Rutkowski, and Władysław Hibner on the 25th anniversary of the execution of the three communists captured with weapons in hand. The Marszałkowska Residential District (MDM): the design by Józef Sigalin, Zygmunt Skibniewski, Stanisław Jankowski, and Jan Knothe is approved; demolition works begin.