In 1977, it was founded the organization of the Mothers of Plaza de Mayo. Originally, its aim was finding the missing children or family members and the grandchildren birth, because, at the time of the capture during the imprisonment in the clandestine detention centres many women were pregnant or they were giving birth to their children.

After the death of the mother, these children had an uncertain destiny and many of them, even today, are sought by their grandmothers. Since then the “white handkerchief” that these grandmothers carry on their heads has become not only a national symbol of protest against repression and military abuse (they symbolize the blankets and diapers of their children) , but mostly the emblem of the struggle for truth and the finding of their families. In addition, the Grandmothers demanded that justice be done and that the guilty of these crimes against humanity be sentenced with the deserved punishment.