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| 1977 |
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| In the Plaza de Mayo in Buenos Aires, groups of women began assembling with photographs of missing relatives pinned to their chests. These “Mothers of the Plaza de Mayo” began as a small group protesting the human rights abuses, but soon numbered in the thousands. They mobilized international criticism of the regime. | 1 |
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| 1980, Oct. 13 |
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| Adolfo Pérez Esquivel, the human rights activist, was awarded the Nobel Peace Prize. | 2 |
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| 1981, March 29 |
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| Retired major general Roberto Viola succeeded Videla as president. | 3 |
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| Nov. 20 |
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| Unable to deal with massive inflation, spiraling debt, and economic chaos, Pres. Viola was forced out of office by a coup that replaced him with army commander in chief Gen. Leopoldo Galtieri (Dec. 11). | 4 |
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