January 1 is the Solemnity of Mary, the Mother of God.
Solemnity of Mary is celebrated on the 1st Of January
It is the feast of the Assumption of Our Lady, the Blessed Virgin Mary.
September 8 is the feast of the nativity of the Blessed Virgin Mary.
The Nativity of the Blessed Virgin Mary is celebrated on September 8 although the actual date is not known.
Feast of the Assumption of the Blessed Virgin Mary - this is a major feast day
There is no saint named Dolores. The name derives from a title given to the Blessed Virgin Mary - Mater Dolorosa or Sorrowful Mother. The feast day is celebrated on September 14.
October 16 - the feast of the Purity of the Blessed Virgin Mary.
July 26 is the feast of St. Anne, the mother of the Blessed Virgin.
Dec 8th is the Feast of the Immaculate Conception of the Blessed Virgin.
The Blessed Virgin has a number of feast days and each one celebrates something different. See the link below for a list of all her feasts. Most are self explanatory or you can click on them for an explanation.
May 31 is the Feast Day for the Visitation of the Blessed Virgin Mary
The Blessed Virgin Mary has three solemnities (Holy Days of Obligation) throughout the year: January 1 - The Feast of Mary, Mother of God August 15 - The Solemnity of the Assumption of the Blessed Virgin Mary December 8 - The Solemnity of the Immaculate Conception