Did Niceia Council define the Easter date regulation in the IV century?

Abstract

Catholic Easter has a moving date on the calendar, being prescribed on the first Sunday of the Full Moon after the spring equinox in the Northern Hemisphere. Many authors claim that this Easter standardization was instituted by the Council of Nice in the year 325. In this work, the objective is to deconstruct the idea of this connection through the problematization of several documents from the period that indicate the lack of standardization of the date of the Easter until the 4th century and the fragility of such an attribution to Niceia. From the analyzed documentation, we have as a result that the regulation of that date is the result of a subsequent attribution, made by clerics like Dionisio, the Exige. Thus, it appears that the definition of a date for Easter, distinct from Jewish Pessach, was part of a process of defining the celebration's identity among Christians.