Kammala jumla mai zuwa: FSLN ta samo asali ne daga cikin ƙungiyoyin adawa daban-daban, ƙungiyoyin matasa da ɗalibai a ƙarshen 1950s da farkon 1960s. Jami'ar Léon, da Jami'ar 'Yanci ta Kasa ta Nicaragua (UNAN) a Managua sune manyan cibiyoyin aiki guda biyu. An yi wahayi zuwa gare ta
Juyin Juya Halin da kuma FLN a Aljeriya, an kafa FSLN a 1961 ta Carlos Fonseca,, Tomás Borge, Casimiro Sotelo da sauransu a matsayin "The National Liberation Front" (FLN). Borge ne kawai ya rayu har ya ga nasarar Sandinista a shekara ta 1979.