Beginning around 1965, the implementation of the Second Vatican Council reforms initiated a period of profound transformation within the Roman Catholic Church. These changes fundamentally reshaped both the nature of worship and the broader pastoral life of the institution, marking a significant departure from established traditions.

The reforms sought to modernise the Church and foster a more inclusive approach to faith. Key developments during this period included:

• The adoption of vernacular languages in place of Latin for the liturgy.
• Increased opportunities for active participation by the laity in religious services.
• A renewed commitment to ecumenical dialogue with other Christian denominations.
• The development of more formalised engagement with non-Christian religions.
• A deliberate effort to address the challenges and realities of the modern world.

While the pace and style of these changes varied significantly by region, the cumulative effect was a lasting shift in Catholic practice. By prioritising accessibility and openness, the council altered the relationship between the Church and its global congregation, leaving an indelible mark on the religious landscape of the contemporary world.