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| 1949, Aug. 25–Nov. 24 |
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| The death of Pres. Arosemena on Aug. 23 touched off a struggle for his succession, from which Arnulfo Arias emerged victorious. | 1 |
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| 1951, May 9 |
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| Rioting in Panama City followed the dissolution of the National Assembly and the suspension of the constitution by Pres. Arias. On the next day the president was impeached and replaced by First V.P. Arosemena. | 2 |
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| 1952, May 11 |
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| The government's candidate, former police chief José A. Remón Cantera, won the presidential elections, described by the opposition candidate as a “dangerous burlesque of democratic principles.” Remón renegotiated the 1903 canal treaty, resulting in wage equalizations between Panamanians and North Americans and an increase in the annual lease payment for the canal to $1.93 million. | 3 |
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| 1955, Jan. 15 |
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| Following the National Assembly's dismissal of Pres. José Ramón Guizado for being implicated in former president Remón's assassination (Jan. 2), Ricardo Arias Espinoza was installed as president. | 4 |
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| 1956, June 15 |
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| Returns from the May 13 election indicated that Ernesto de la Guardia had won the presidency. | 5 |
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| 1960, May 8 |
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| Roberto F. Chiari, the Liberal Party candidate, won the presidential election. | 6 |
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| Sept. 17 |
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| U.S. president Dwight D. Eisenhower ordered that the Panamanian flag be flown with the U.S. flag in the canal zone. | 7 |
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