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| 1958, May 4 |
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| Alberto Lleras Camargo was elected president and was inaugurated on Aug. 7. | 1 |
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| 1959, March 24 |
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| Pres. Lleras Camargo announced a cabinet composed of six Liberals, six Conservatives, and one military figure. | 2 |
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| 1961 |
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| Fearing social revolution, the government launched a heavily publicized but insubstantial land reform. The reform coincided with new military efforts, with U.S. aid, to eradicate guerrilla movements in the countryside. | 3 |
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| 1962, May 6 |
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| Guillermo León Valencia, endorsed by the National Union Coalition, won the presidential election. | 4 |
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| 1965, May–1969, Dec |
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| A state of siege was instated to control student unrest and disturbances resulting from the economic crisis. | 5 |
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| 1966 |
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| Founding of the Revolutionary Armed Forces of Colombia (FARC). This organization, along with others such as the National Liberation Army (ELN) and the April 19 Movement (M-19), had ties to the peasant mobilizations of the 1950s and continued to grow despite repeated efforts at suppression. | 6 |
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| May |
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| In the presidential elections, the candidate of the National Front, Dr. Carlos Lleras Restrepo, was successful. | 7 |
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