Pio XI

Pope Pius XI was the head of the Catholic Church from 1922 to 1939. He is known for efforts to strengthen the church's role in the modern world, including establishing diplomatic relations with many countries. He also promoted social justice through his teachings, notably encyclicals like *Quadragesimo Anno*, which emphasized workers' rights and social harmony. Pius XI opposed totalitarian regimes such as Fascism and Nazism, often speaking out against their abuses. His leadership helped shape the church’s stance on social and political issues during a turbulent period in history.