Annunciation Day is the day celebrated in the Christian faith that commemorates the announcement by the angel Gabriel to the Virgin Mary that she has been chosen to bear the son of God, Jesus Christ. This holiday is also known as Lady Day, the Feast of the Annunciation or the Solemnity of the Annunciation. In many countries, it is a public holiday, and various traditions and customs are observed. Some of the synonyms for Annunciation Day could include Angel Gabriel Day, Mary's Day, or even the Day of Good News, as the angel Gabriel brought the good news to Mary about the birth of Christ.