Latin Mass liturgy

Timeline

1. 301–501Rome · ItalyThe Roman Church gradually fixed the structure of the Mass and the Office in Latin during the era of Pope Leo I and others, superseding the spread of Greek-language liturgy in Western Europe and laying the basic framework for a thousand years of Latin ritual.
2. c. 800–900Aachen · Holy Roman EmpireUnder Charlemagne the Church promoted a unified Roman Missal and Office (including the eight daily hours such as Vespers and Matins); Benedictine and other monastic traditions merged with the Roman liturgy, and Latin chanting and fixed chants became widespread in Western European dioceses.
3. 1341–1350Western European diocesan network · ItalyBy the 1340s the Latin Mass and Vespers were highly formalized in cathedrals, Benedictine and Dominican monasteries, and university churches; during the spread of the Black Death after 1347, public Masses and memorial Vespers became the core religious practice of communities confronting the plague, and the liturgical tradition continued operating amid the upheaval.
4. c. 1570Trent · ItalyAfter the Council of Trent (1545–1563) Pope Pius V promulgated a uniform missal (1570), further standardizing the Latin Mass; though later adjusted by the reforms of Vatican II, the Latin liturgical tradition remains the oldest core of public prayer in the Catholic Church.