when did hungary became part of the eu
History of Hungary In 1988, Kádár was replaced as General Secretary of the Communist Party, and reform Communist leader Imre Pozsgay was admitted to the Politburo. In 1989, the Parliament adopted a "democracy package" that included trade-union pluralism; freedom of association, assembly, and the press; a new electoral law; and in October 1989 a radical revision of the constitution, among others. Since then, Hungary has reformed its economy and increased its connections with western Europe. It became a member of the European Union in 2004.