What is the story behind Mary’s birth?

Although their story is not in Sacred Scripture, according to a pious tradition, Saints Anne and Joachim had been infertile throughout their married lives. Then, like Sarah (Genesis 21:2) and Elizabeth (Luke 1), Saint Anne conceived in her old age. This child was the Blessed Virgin Mary.

What day is Mary’s birthday?

The Church celebrates Mary’s birthday on September 8. This feast day is exactly nine months after the Solemnity of the Immaculate Conception on December 8th. The Church makes no claims as to the historical merit of either date. Rather, the dating serves a liturgical purpose in recalling the mysteries associated with Mary, in the same way as the nine months on the calendar between the Annunciation and Christmas.