The definition of nativity is the time, place, and circumstances of a person's birth. Of course I have never heard of anyone refer to their birth, their children's births or anyone's birth as a nativity, other than Jesus' birth. The nativity has become irrevocably know as the time, place, and circumstances of Jesus' birth.
Nativity scenes can be found beginning with a simple depiction of Mary, Joseph and baby Jesus to an elaborate display including Mary, Joseph, Jesus, a manger, a shepherd, lambs, donkeys, three kings, an angel, a star, and even the surrounding town of Bethlehem. No matter what the size of a nativity scene we come upon is, everyone we see fills our hearts with joy of the birth of our Savior.
Jesus was also called Christ.
Christ means Messiah.
Mass is a religious ceremony or celebration.
Christmas comes from the words Christ and mass.
Therefore Christmas means a celebration of the Messiah.
What better way can there be than to celebrate Christmas with nativity figurines and sets, nativity scene ornaments, nativity scene collectibles, nativity scene home decor items, and nativity scene pins and jewelry. The giving of nativity scene gifts at Christmas is the Christian's way of sharing the joy of the birth of our Savior with one another.