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Pope Leo XIII

Rerum Novarum Pope Leo XIV Papal Influence Encyclicals Pope Leo the Great Papal Encyclicals Pope Francis Social Advocacy Industrial Revolution Pope Leo I Social Encyclicals Social Teachings Social Justice Papal Social Teachings Historical Context of Papacy Papal Legacy Encyclical Rerum Novarum Modern Papacy 19th Century Papacy Papal Elections Papal Elections in the 21st Century