By 1896, the rebellion fomented by the "Katipunan", a militant secret society, had become a full-blown revolution, proving to be a nationwide uprising. Rizal had earlier volunteered his services as a doctor in Cuba and was given leave by Governor-General Ramón Blanco to serve in Cuba to minister to victims of yellow fever. Rizal and Josephine left Dapitan on August 1, 1896, with letter of recommendation from Blanco.