The Socialist Republic of Macedonia (Macedonian: Социјалистичка Република Македонија, Socijalistička Republika Makedonija) was one of the six constituent countries of the Socialist Federal Republic of Yugoslavia, and a socialist nation state of the Macedonians. After the transition of the political system to parliamentary democracy in 1990, the Republic changed its official name to Republic of Macedonia in 1991, and with the beginning of the breakup of Yugoslavia, it declared itself an independent country on September 8, 1991.