To forestall such controversies, the Council of Nic a had decreed that Pascha could not fall on Passover. Thus far, all the Apostolic Churches agree today. But then the problems start. If the normal calculations would place Pascha before the Jewish Passover, then Pascha must be pushed forward. The only Apostolic See in the West, Rome, remembered the Council differently, holding that all that was mandated was that Pascha must not fall on 14 Nisan directly.
Negotiations are currently underway to attempt a solution acceptable to all.
The Byzantine and the Roman are the most international and multi-ethnic of the Catholic Churches. The theological name for the Feast of the Resurrection is Pascha. Christ's saving Passion, Death and Resurrection are the fulfillment of the Passover of Israel into freedom. Pascha is the New Creation , the eighth day on which all things are made new. While Christians have adopted many elements from earlier times, Easter lacks the spiritual and theological import of Pascha.