The Mirabal sisters Patria, Dedé, Minerva, and María Teresa were reared in Ojo de Agua, Dominican Republic in a home of privilege at the time of the Trujillo dictatorship. During the 1950's when the sisters were young women an underground
anti-Trujillo movement began to proliferate. One by one, Minerva, María Teresa, and Patria Mirabal became involved in the resistance. The sisters known as "las Mariposas" ("the butterflies") became inspirational leaders of the resistance.
The government imprisoned the three sister's husbands. On the evening of November 25, 1960, as the Mirabal sisters returned home from visiting their husbands in the Puerto Plata prison, soldiers ambushed their jeep. The three women and their driver were strangled and clubbed to death.
To hide the murder, the bodies were placed in the jeep and rolled off a cliff.
The Dominican public did not believe the government's story of the "accident". Historians consider their murder a turning point in the downfall of Trujillo dictatorship. Following the Mirabal murder support for the dictator waned as the resistance gained momentum. The Catholic Church became
openly critical of the regime. On May 30, 1961, Trujillo was ambushed and assassinated.