Question: When was the leading figure in the Mexican Revolution which Ralph Chaplin was his suppoter born 
Sentence (from "Emiliano Zapata"): Emiliano Zapata Salazar (] ; 8 August 1879 – 10 April 1919) was a leading figure in the Mexican Revolution, the main leader of the peasant revolution in the state of Morelos, and the inspiration of the agrarian movement called "Zapatismo".
Relevant evidence: Yes