during the 1968 Polish political crisis, which forced the remainder of Poland's Jews to emigrate. Amidst the ongoing political and economic crises, the Solidarity movement emerged as a major anti-bureaucratic social movement that pursued social change. With communist rule being relaxed in neighbouring countries, the PZPR systematically lost support and was forced to negotiate with the opposition and adhere to the Polish Round Table Agreement, which permitted free democratic elections. The elections on 4 June 1989 proved victorious for Solidarity, thus bringing 40-year communist rule in Poland to an end. The Polish United Workers' Party was dissolved in January 1990. Programme and goals Until 1989, the PZPR held dictatorial powers (the amendment to the constitution of 1976 mentioned "a leading national force") and controlled an unwieldy bureaucracy, the military, the secret police, and the economy. Its main goal was to create a Communist society and help to propagate Communism all over the world. On paper, the party was organised on the basis of democratic centralism, which assumed a democratic appointment of authorities, making decisions, and managing its activity. These authorities decided about the policy and composition of the main organs; although, according to the statute, it was a responsibility of the members of the congress, which was held every five or six years. Between sessions, the regional, county, district and work committees held party conferences. The smallest organizational unit of the PZPR was the Fundamental Party Organization (FPO), which functioned in workplaces, schools, cultural institutions, etc. The main part in the PZPR was played by professional politicians, or the so-called "party's hardcore", formed by people who were recommended to manage the main state institutions, social organizations, and trade unions. The crowning time of the PZPR development (the end of the 1970s) consisted of over 3.5 million members. The Political Office of the Central Committee, Secretariat and regional committees appointed the key posts within the party and in all organizations having ‘state’ in its name – from central offices to even small state and cooperative companies. It was called the nomenklatura system of state and economy management. In certain areas of the economy, e.g., in agriculture, the nomenklatura system was controlled with the approval of the PZPR and by its allied parties, the United People's Party (agriculture and food production), and the Democratic Party (trade community, small enterprise, some cooperatives). After martial law began, the Patriotic Movement for National Rebirth was