The two feasts in August complement each other and are liturgically connected.In the Roman Catholic Church, the liturgy celebrates two principal Marian feasts in August. The first is the Solemnity of the Assumption of the Virgin Mary on August 15, and the second is the Feast of the Queenship of Mary on August 22.While the two may not seem directly connected at first glance, a closer look will discover layers of spiritual meaning.
The feast of the Assumption has been celebrated by the Church since at least the 6th century, and for many years its celebration was extended by an octave.In the history of the Church all major feasts were celebrated for a period of eight days.
This meant that essentially the same liturgy was said, using the same liturgical texts each day of the octave.The eighth day of the octave was seen as a final “farewell,” honoring the spiritual themes of the feast for the last time. For this reason a complimentary feast was often instituted on this eighth day.When it came to the Assumption, it had an octave celebration for many centuries.
Then on May 4, 1944, Pope Pius XII established the feast of the Immaculate Heart of Mary on August 22, the octave day of the feast of the Assumption. He did this so that by her intercession may be obtained “peace among nations, freedom for the Church, the conversion of sinners, the love of purity and the practice of virtue.
”However, Pope Paul VI decided to switch the feasts of the Immaculate Heart and the Queenship of Mary. The feast of the Immaculate Heart of Mary was joined to the feast of the Sacred Heart of Jesus (celebrated on the Saturday following the feast of the Sacred Heart, typically in June) and the Queenship of Mary was moved to August 22.
Continue Reading Here: How the Queenship of Mary is connected to her Assumption –Aleteia