Pope Pius IX Issues Quanta cura

Date: December 8, 1864 • Location: Rome, Italy

Pope Pius IX promulgates the encyclical Quanta cura and its appendix, the Syllabus of Errors, outlining the authority of the Catholic Church and condemning various liberal ideas.

Pope Pius IX was head of the Catholic Church from 16 June 1846 until his death in February 1878.

This milestone marked a defining occurrence in Italy's and world history, leaving an indelible imprint on societal development, international relations, and cultural memory. Its enduring ramifications continue to be examined and commemorated by historians and scholars across the globe.