The Gregorian calendar, instituted by Pope Gregory XIII, went into effect in 1582. In the 1,417 years from 1583 through 3000, it’s most common for Easter to fall on April 16, with 61 instances.

According to the Julian calendar, each year began on the spring equinox, which usually fell around April 1. Under the Gregorian Calendar, however, the new year started on January 1 .

Faith Editorials April 2025 issue. The Council of ... established formula for calculating the date of Easter for more than 12 centuries until the Catholic Church adopted the Gregorian calendar in ...

April 21, 2025 at 14:25 JST. Share; ... a papal bull that officially ended the use of the Julian calendar, introducing in its place what we now know as the Gregorian calendar.

In the Gregorian calendar, it is always observed on a Sunday between March 22 and April 25,” the almanac says. Easter falls on the first Sunday after the Paschal full moon, which is the first ...

The Gregorian calendar was introduced in 1582 by Pope Gregory XIII to correct this miscalculation. ... (between March 22 and April 25) as the common Easter date for all of Christendom. ...