For an interesting treatment of this era I highly recommend The Pope and the Professor: Pius IX, Ignaz von Dollinger, and the Quandary of the Modern Age (2017).
…………………………………………………………………………………………………………. यो मुलुक सिंगापुर जस्तो बनिसकेको छैन मात्र राजनीतिक परिवर्तन...