Mater et Caput of all Churches

The Archbasilica of the Most Holy Saviour, and of Saints John the Baptist and John the Evangelist, commonly known as Saint John Lateran, is the Cathedral of Rome. Mater et Caput of all the Churches in the Urbe and Orbe, it is a point of reference for the Universal Church. On 9 November, we celebrate its dedication by Pope Sylvester, which took place in 324, 1,700 years ago.