All Souls' Day, observed by Christians on November 2nd, is a day dedicated to prayer and remembrance for the deceased. Through prayers, intercessions, charitable acts, and cemetery visits, people commemorate those believed to be in purgatory and seek indulgences for their souls.
The Second Vatican Council, convened in 1962, introduced changes to the liturgical calendar of the Roman Rite, impacting the observance of All Souls' Day.
The liturgical reforms initiated by the Second Vatican Council, including adjustments to the date of All Souls' Day in certain calendars, were implemented in 1969.