Date of Easter: Pope Francis also refers to the fact that the way Easter is worked out was decided at this Council. He says, “The Council of Nicaea also discussed the date of Easter. To this day, different approaches to this question prevent celebrating the fundamental event of our faith on the same day. Providentially, a common celebration will take place in the year 2025. May this serve as an appeal to all Christians, East and West, to take a decisive step forward towards unity around a common date for Easter. We do well to remind ourselves that many people, unaware of the controversies of the past, fail to understand how divisions in this regard can continue to exist.”
The way it is decided is: it is the first Sunday after the first full moon, after the Spring Equinox.