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The Greek and Slavonic names for the Feast of Annunciation may be translated as "good tidings." This, of course, refers to the Incarnation of the Son of God and the salvation He brings. The background of the Annunciation is found in the Gospel of St Luke (1:26-38). The troparion describes this as the "beginning of our salvation, and the revelation of the eternal mystery," for on this day the Son of God became the Son of Man. For more information, see the following link: http://www.oca.org/FSlives.asp and enter the date of the feast.