Hungary adopts the Hungarian Constitution of 1949 and becomes a People's Republic.

Hungary is a landlocked country in Central Europe. Spanning much of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia and Slovenia to the southwest, and Austria to the west. Hungary lies within the drainage basin of the Danube River and is dominated by great lowland plains. It has a population of 9.6 million, consisting mostly of ethnic Hungarians (Magyars) and a significant Romani minority. Hungarian is the official language, and among the few in Europe outside the Indo-European family. Budapest is the country's capital and largest city, and the dominant cultural and economic centre.

The Hungarian Constitution of 1949 was adopted on 20 August 1949^[a] and heavily amended on 23 October 1989.^[b] The document was Hungary's first permanent written constitution, and until its replacement in 2011, the country was the only former Eastern Bloc nation that did not adopt an entirely new constitution after the fall of Communism. The Constitution of Hungary, adopted in 2011, declares the 1949 constitution to be invalid.

The Hungarian People's Republic (HPR) was a landlocked country in Central Europe from its formation on 20 August 1949 until the establishment of the current Republic of Hungary on 23 October 1989. It was a professed communist state, governed first by the Hungarian Working People's Party and after the Hungarian Revolution of 1956, the Hungarian Socialist Workers' Party. Both governments were closely tied to the Soviet Union as part of the Eastern Bloc.

August 20 is the 232nd day of the year in the Gregorian calendar; 133 days remain until the end of the year.