Our Lady of Loreto
A year ago, Pope Francis added the optional memorial for Our Lady of Loreto to the calendar for this date, December 10th.
This title of Our Lady comes from the legends about Mary's home in Nazareth, which was moved stone by stone to Loreto, Italy, and reconstructed. There is now a beautiful Marian shrine in Loreto, still containing that home.
This website tells the whole story, including how the Angeli family made this happen during the Middle Ages, when the Muslims took control of that part of the Holy Land. Unfortunately, in recent decades the town of Nazareth has become a predominantly Muslim town, which has caused some complications in Christian pilgrimages to the site of the Annunciation.
Today would be a good day to pray the litany to Our Lady of Loreto, composed in the 16th century.