593 The doctrine of Purgatory enters the church
600 Latin language is ordered to be used in the mass
607 Prayers begin to be directed to Mary, dead saints, and angels
607 Title of Universal Bishop
709 Kissing the pope’s foot (began with Pope Constantine)
786 Veneration of the cross, images, and relics
850 Holy water invented (water + salt + priests’ blessing)
890 Worship of St. Joseph
995 Canonization of dead saints
998 Fasting during Lent
1079 Celibacy of the priesthood (decreed by Pope Gregory VII)
11th cent. Attendance of the Mass made obligatory
1090 The Rosary–praying with beads
1184 The Inquisition (enacted by the Council of Verona)
1215 Transubstantiation (decreed by Pope Innocent III)
1215 Confessing sins to priest, instead of to God
1215 Yearly confession prescribed (Fourth Lateran Council)
1220 Adoration of the wafer (Host/Eucharist)