Engage with the legacy of Pope Pius IX, a defining figure in 19th-century Catholicism. Pius IX's papacy, the longest in history, witnessed significant shifts in the relationship between the Church and the modern world. His pronouncements on faith and morals, including the dogma of the Immaculate Conception and the Syllabus of Errors, left an indelible mark on Catholic thought.

Through this interactive experience, explore the complexities of 19th-century religious and political landscapes through the lens of Pius IX's teachings.

• Can you explain the significance of the dogma of the Immaculate Conception and its impact on Catholic understanding of Mary?
• What were the major social and political changes occurring during the 19th century that influenced the relationship between the Church and the world?
• Can you elaborate on the concept of Papal Infallibility and its historical development within the Catholic Church?
• What were some of the key challenges faced by the Catholic Church in the 19th century, and how did Pius IX address them?
• How did Pius IX's pronouncements on faith and morals reflect the broader intellectual and philosophical currents of his time?