Event

Date ( A.D. )

Prayers for the dead

300

Veneration of dead saints, use of images

375

The Mass as a daily celebration

394

Exaltation of Mary; called Mother of God also

431

Extreme Unction

526

Purgatory; later a dogma

593 and 1439

Praying to Mary and dead saints

600

First use of the title Pope

607

The Mass as a sacrifice; mandatory weekly attendance

11th century

Sale of indulgences

1190

Transubstantiation

1215

Confessing to a priest

1215

Adoring the wafer of the Eucharist

1220

Tradition equal in authority with the bible

1545

Apocrypha added to the bible

1546

Immaculate conception of Mary

1854

Infallibility of pope in matters of faith and morals

1870

Bodily ascension of Mary to heaven immediately after her death

1950