The chapter follows Haya during a remarkable international saga during which he founded APRA as a transnational political party. Haya found himself at key locations during the global transition toward mass politics of the early twentieth century: Argentina following the university reform movement, post-revolutionary Mexico, post-revolutionary Russia, England during the rise of Laborism and Berlin during the rise of Nazism. He borrowed elements from each of these political movements to formulate Aprismo, a Marxist inspired anti-imperialist revolutionary ideology for Latin America. Haya believed that Latin America already had its own home-grown revolution, the Mexican Revolution, a model to be replicated in Peru and the rest of the continent