The Fathers of the First Ecumenical Council in Nicea in the year 325 adopted the first of September as the beginning of the New Church Liturgical Year and this has been observed in the Eastern Church to the present time. In Byzantine tradition, the creation of the world is dated to the first of September in 5509 BC (5509 + 2023 = 7532). According to Holy Tradition, Christ entered the synagogue on September 1 to announce His mission to mankind (Luke 4:16-22). Tradition also says that the Hebrews entered the Promised Land in September.