In 1894, Emilio Jacinto a student at the University of Santo Tomas, became a member of the underground revolutionary society Katipunan. Jacinto rose in the ranks of the Katipunan hierarchy becoming Andres Bonifacio's advisor. Jacinto died of malaria in 1899 at the age of twenty-three.
The Bureau of Posts issued the Emilio Jacinto 1 piso definitive stamp on January 23, 1963.
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