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| 1958, Dec. 6 |
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| The government revealed plans for building an oil pipeline from Russian fields to Poland and East Germany. | 1 |
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| 1959, March 31 |
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| The repatriation of Poles from the Soviet Union to East Poland, under the agreement of November 1956, ended, after some 250,000 Poles had been repatriated. | 2 |
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| 1960s |
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| While the Polish government remained a reliable partner of the Soviet government, especially in the ideological conflict between Moscow and Beijing, growing unrest among intellectuals and artists obliged the government to relax measures of repression and to accept greater academic and business contacts with the West. | 3 |
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| 1964, Aug. 12 |
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| Edward Ochab, a veteran Polish Communist, was elected president by the Sejur to replace Aleksander Zawardzki, who had died. | 4 |
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| 1966, May 3 |
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| Celebration of 1,000 years of Polish Christianity. The projected attendance of Pope Paul VI was vetoed by the Polish government. | 5 |
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| 1968 |
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| Growing dissatisfaction with the Gomulka regime. Student demonstrations and outbreaks were accompanied by much factional struggle in government ranks. This led to a purge of “Zionist” elements and the emigration of many Jews. Gomulka, however, retained the support of the Soviet authorities. | 6 |
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| Aug |
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| The invasion and occupation of Czechoslovakia. Gomulka fully supported the Soviet position, and Polish troops participated in the military operations. | 7 |
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| Nov. 11–16 |
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| The Polish Communist Party Congress failed to shake Gomulka's position. | 8 |
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