sentences:  He went on to write other historical plays about the personalities of José de San Martín and Juan Martín de Pueyrredón in "The Unknown" ("El desconocido"), Bernardino Rivadavia in "Bernardino", Esteban Echeverría in "The Tomorrow" ("El mañana") and Lucio V. Mansilla in "A Man at the Mirror" ("Un hombre ante el espejo").However, it is "Childhood in Catamarca" ("Niñez en Catamarca") his most known and piece of work, which is an autobiographic tale that has been adopted by many Argentine schools as a lecture book.Gustavo G. Levene died in Buenos Aires, in 1987.