mentioned in the Catholic Church during the era of Pope Gelasius in the year 496 AD.
Antique Christians believed that 25th March was the actual day of the death of Jesus.
The Annunciation of the Virgin Mary is described in the book of Luke in the Bible. God sent the angel Gabriel to the Virgin Mary, who was living at Nazareth, a small town in the mountains of Galilee.
Mary was a descendant of the house of David, and was married to Joseph, who belonged to the same royal family. Mary was still living in her mother's house. The angel Gabriel took the figure and the form of a man, and came into the house and appeared to Mary. She was scared because she did not know the angel or the reason for his visit. The angel told Mary that she was going to conceive and have a son that she was to call Jesus.
Mary understood that the Redeemer was being described to her, but she did not understand why she was selected for the task. The angel told Mary that her baby would be the Son of God. As proof of the truth of his message the angel also told Mary that her cousin Elizabeth was already pregnant against all odds in her old age. This was confirmed when Mary went to visit Elizabeth.