The FSLN originated in the milieu of various oppositional organizations, youth and student groups in the late 1950s and early 1960s. The University of Léon, and the National Autonomous University of Nicaragua (UNAN) in Managua were two of the principal centers of activity. Inspired by the Revolution and the FLN in Algeria, the FSLN was founded in 1961 by Carlos Fonseca, , Tomás Borge, Casimiro Sotelo and others as "The National Liberation Front" (FLN). Only Borge lived long enough to see the Sandinista victory in 1979.