Today's feast of the Presentation was taken out of the Church calendar by Pope St. Pius V, the great reforming Pope who is famous for the Tridentine Mass. But Sixtus V put it back in 1585. The Orthodox Church celebrates this feast, and it may have been retained in our calendar as an ecumenical gesture.
It actually originated as a feast of the dedication of the Church of St. Mary in Jerusalem on Nov. 21, 543! Pretty ancient! It may also have some relation to the apocryphal Gospel of St. James. That document relates incidents about the childhood of Mary which are probably not historical but have always been of great interest to Christians. That's where we got the names Joachim and Anne for Mary's parents.
In any case, the feast offers some food for reflection. The Office of Readings for this feast has St. Augustine's famous statement that Mary was more blessed for her faith in Christ than for bearing the flesh of Christ. An encouraging thought for all of us who can imitate Mary by our lives of faith.