The early church is anti-Jewish. They wanted to alienate
themselves from the Jews. Some bishops were in favour of holding
the celebration on Passover day though.
Refer to the the Quartodeciman or Paschal controversy if you are
interested - http://www.wcg.org/lit/church/holidays/passover.htm
The controversy involved three events: the controversy between
Polycarp, the bishop of Smyrna, and Anicetus, the bishop of Rome,
that occurred around a.d. 155; the more heated controversy between
Polycrates, the bishop of Ephesus, and Victor, the bishop of Rome,
that broke out around 195; and the decree of Constantine following
the Nicene Council in 325.
Scholars disagree about the controversy's details. They do
agree that its arguments revolved around whether the primary
Christian spring festival should happen on Nisan 14 (the Passover
day) or annually on a Sunday.
Eusebius is our primary source for the controversy between Polycarp
and Anicetus. Polycarp knew the apostle John and was of such
stature that many considered him John's spiritual, though not
apostolic, successor in Asia Minor. Polycarp believed that Nisan 14
was the correct time for the spring festival, but Anicetus, bishop
of Rome, favored Sunday.
Mai siao siao .. Polycarp against the Pope (bishop of
Rome).
This controversy is enough to show that the early church was not as
united as the Roman Catholics claim.
PS: Actually I don't understand why Polycarp is not considered the
apostolic successor of John. Hmm ..