The article is started with a short commentary of the value of the testimony as historical source, and one of the more usual forms of |historiografiar| the insurrectionary process Cuban from the decade of the fifty; for then, make an analysis of the first text of testimonial character on the events of 30th November 1956 published, in the secret first edition of the periodic revolution ( official organ of the revolutionary movement July 26 ) that saw the light in the fifteenth first of February 1957. It tries to get demonstrate the value of this testimony as source to keep in mind in the study of thoses events. Precisely with this text, there was continuity to the tradition of witnessing at each stage, the political and social struggles of the Cuban people.With which continuity to the tradition to testify in each stage, the political and social fights of the Cuban people.