Luigi Pecci

Luigi Pecci, known as Pope Leo XIII, served as the head of the Catholic Church from 1878 to 1903. He is remembered for his significant contributions to Catholic social teaching, particularly through his encyclical 'Rerum Novarum,' which addressed the rights of workers and the importance of social justice during a time of industrial upheaval. His papacy marked a pivotal moment in the Church's engagement with modern social issues, and he is also noted for his long tenure, making him one of the longest-serving popes in history.