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| 1951, May 22 |
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| The deputy prime minister met with Soviet foreign minister A. Vishinsky and signed an agreement to cede territory in the Lublin area to the USSR in return for part of Drohobyca province, which reportedly contained enough oil wells to increase Polish oil production by 20 percent. | 1 |
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| 1952, Nov. 20 |
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| With the abolition of the presidency by the new constitution, President Boleslaw Bierut stepped down to become premier. The Council of State became the nation's highest political organ. | 2 |
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| 1953, Sept. 8 |
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| Cardinal Jozsef Wyszynski, head of the Polish Catholic Church, was arrested for alleged conspiracy against the state; he was held in a monastery for years. | 3 |
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| Dec. 18 |
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| On the radio in Warsaw it was reported that all Roman Catholic bishops in Poland had taken an oath of loyalty to the state. | 4 |
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