Walter Ulbricht and Willi Stoph, the leaders of East Germany, visit Warsaw: the Treaty of Friendship is signed. In Szczecin, the "Zaglebie Dabrowskie" ship is launched. A bombshell: Jacek Woszczerowicz played Chopin's "Valse Minute" in 50 seconds! [realization A. Kaminski - M. Marzynski]