We trace how Leo XIII led through upheaval with prayer, intellect, and courage, shaping Catholic social teaching while renewing devotion to the Sacred Heart, the rosary, and the power of Scripture. His vision shows a path where justice, reason, and worship move as one.
• early life, Jesuit formation, discernment of priesthood
• election after loss of Papal States and rise of secularism
• Rerum Novarum on workers’ rights and just wages
• revival of Thomistic philosophy for faith and reason
• Providentissimus Deus and responsible biblical scholarship
• consecration to the Sacred Heart and home enthronement
• Marian devotion, October as the month of the rosary
• Saint Michael Prayer’s origin and spiritual warfare
• practical resources from our ministry and pilgrimages
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