When Jesus died on the Cross, he gave the care of his earthly mother to the Apostle John.... John was the disciple whom Jesus loved.
Sometime before the destruction of Jerusalem in 70 A.D., John moved to Ephesus. He was arrested by order of the Emperor Domitian and banished to the Isle of Patmos where he wrote the incomparable Book of Revelation: a prewritten history of the Christian church.
John had a disciple named Polycarp who became Bishop of Smyrna. Polycarp had a meeting with Anicetus, Bishop of Rome about the middle of the 2nd century about this very Passover controversy. Even at this early date, Rome was trying to change the times and seasons.
Rome tried to disparage those who kept the correct date by calling them quartodecimans or 14th Day Christians. She used every trick in her book to get the church to change and adopt her false computation.
Some famous Quartodecimans:
The Virgin Mary, the apostle John, the apostle Peter, St. Paul, St. Patrick, St. Columba, St. Columban and millions of Christians down thru the ages who refuse to compromise with error.
We are proud to say that we are Quartodecimans too.
A History of the Christian Councils, in 4 volumes, by Rev. Joseph Hefele, D.D., Edinburgh, 1894. Translated from the German and edited by William Clark, M.A.