The Historical Development and Contemporary Evolution of Catholic Social Teaching

Catholic Social Teaching (CST) is one of the most important moral traditions through which the Catholic Church responds to social, economic, political, ecological, and technological issues. This study reviewed the background, history, and evolution of CST, with particular attention to its theological foundations, doctrinal development, and contemporary applications. The review was guided by three objectives: to examine the historical and theological foundations of CST, to trace its development through major papal encyclicals and Church documents, and to identify current themes in recent scholarly literature. The findings show that CST is rooted in the Christian understanding of human dignity, the common good, solidarity, subsidiarity, participation, and care for the poor. The study further reveals that CST has evolved from early concerns about labour, poverty, and economic justice to broader issues such as ecological sustainability, healthcare governance, inclusive education, global development, and artificial intelligence ethics. Major documents such as Rerum Novarum, Gaudium et Spes, Laudato Si’, and Fratelli Tutti demonstrate the tradition’s ability to respond to changing social realities while maintaining its core moral principles. However, the review also identifies a persistent gap between CST’s rich theoretical vision and its practical implementation in institutions and communities. The study concludes that CST remains a relevant and dynamic framework for promoting justice, human dignity, social responsibility, and ecological care in the contemporary world.