During the dictatorship, in the Navy Mechanics School (ESMA), a military training center for cadets, the largest clandestine detention center in the country operated at the same time. It is estimated that between 1976 and 1983 more than five thousand people were taken there; most of them by military aircrafts and thrown alive from a great height to the Rio de la Plata river or the Argentine territorial sea in the so-called “death flights”, or murdered andburied as “N.N.” (Ningún Nombre/No Name) in mass graves. At least 37 pregnant women gave birth in captivity to their babies, who were appropriated by other families.