Encouraged by the success of the August strikes, on September 17 workers' representatives, including Lech Wałęsa, formed a nationwide labor union, Solidarity ("Niezależny Samorządny Związek Zawodowy (NSZZ) "Solidarność""). It was the first independent labor union in a Soviet-bloc country. Its name was suggested by Karol Modzelewski, and its famous logo was conceived by Jerzy Janiszewski, designer of many Solidarity-related posters. The new union's supreme powers were vested in a legislative body, the Convention of Delegates ("Zjazd Delegatów"). The executive branch was the National Coordinating Commission ("Krajowa Komisja Porozumiewawcza"), later renamed the National Commission ("Komisja Krajowa"). The Union had a regional structure, comprising 38 regions ("region") and two districts ("okręg"). On December 16, 1980, the Monument to Fallen Shipyard Workers was unveiled in Gdańsk, and on June 28, 1981, another monument was unveiled in Poznan, which commemorated the Poznań 1956 protests. On January 15, 1981, a Solidarity delegation, including Lech Wałęsa, met in Rome with Pope John Paul II. From September 5 to 10, and from September 26 to October 7, Solidarity's first national congress was held in Hala Olivia, Gdańsk, and Lech Wałęsa was elected its president. Last accord of the congress was adoption of republican program "Self-governing Republic".