The Polish Committee of National Liberation publishes its manifesto, starting the period of Communist rule in Poland.

The Polish Committee of National Liberation, also known as the Lublin Committee, was an executive governing authority established by the Soviet-backed communists in Poland at the later stage of World War II. It was officially proclaimed on 22 July 1944 in Chełm, installed on 26 July in Lublin and placed formally under the direction of the State National Council. The PKWN was a provisional entity functioning in opposition to the London-based Polish government-in-exile, which was recognized by the Western allies.^[a] The PKWN exercised control over Polish territory retaken from Nazi Germany by the Soviet Red Army and the Polish People's Army. It was sponsored and controlled by the Soviet Union and dominated by Polish communists.

The Manifesto of the Polish Committee of National Liberation, also known as the July Manifesto or the PKWN Manifesto, was a political manifesto of the Polish Committee of National Liberation (PKWN), a Soviet-backed administration, which operated in opposition to the London-based Polish government in exile.

The Polish People's Republic (1952–1989), formerly the Republic of Poland (1947–1952), and also often simply known as Poland, was a country in Central Europe that existed as the predecessor of the modern-day democratic Republic of Poland. With a population of approximately 37.9 million near the end of its existence, it was the second most-populous communist and Eastern Bloc country in Europe. It was also where the Warsaw Pact was founded. The largest city and capital was Warsaw, followed by the industrial city of Łódź and cultural city of Kraków. The country was bordered by the Baltic Sea to the north, the Soviet Union to the east, Czechoslovakia to the south, and East Germany to the west.