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In page Paulina Ana María Zapata Portillo:

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When she was aged 20, Anita began working for feminist causes and joined the Unión de Mujeres Americanas (Union of American Women),[citation needed] which had been founded in 1934 by Margarita Robles de Mendoza.[3] The UMA Chapter of Morelos was founded in 1935 with Zapata as its president. She organized women to fight for the vote in Morelos, recruited women from Guerrero to join and served as the president of the Puebla chapter as well as the Morelos chapter. She also joined the Partido Nacional Revolucionario (PNR) (the precursor to PRI) and fought for the vote from within the ranks of the party,[citation needed] becoming president of the Asociación Nacional Femenina Revolucionaria[4] the Institutional Revolutionary Party (PRI)'s women's affiliate.[5]