From Texas Standard:
Forty years ago today, Argentina experienced a military coup that threw out then-president Isabel Perón. What followed was seven years of military dictatorship, where tens of thousands of people "disappeared.”
But they didn’t simply disappear – they were tortured and killed by the militia. The military claimed these people were from violent guerrilla groups, threatening Argentina's democracy, but many were college students, professors, priests, and social workers – anyone who was deemed a threat or spoke out against the Argentine government, a dictatorship that lasted from 1976 to 1983.
Some say human rights violations had been taking place even before the military officially took power.