Under the tenure of Addai II, the Ancient Church of the East has made several gestures towards reunification with the Assyrian Church of the East. The most prominent of these is undoubtedly the declaration made in June 2010 stating that the Ancient Church of the East would now celebrate Christmas in accordance with the Gregorian calendar. Previously, the church used the traditional Julian date for the Christmas Day (December 25 of the Julian calendar currently corresponds to January 7 of the Gregorian Calendar), as the Church of the East had throughout its history.