There are 20 Solemnities in the current Roman calendar for the world, ten of which are Holy Days of Obligation:
DateSolemnityNotes about date
1 JanuaryBlessed Virgin Mary, Mother of GodOctave of Christmas, Circumcision of the Lord, New Year's Day
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6 JanuaryEpiphany of the LordWhere not a holy day of obligation, transferred to the Sunday between 2 January and 8 January, inclusive
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19 MarchSaint Joseph, spouse of the Blessed Virgin MaryIf the Solemnity of Saint Joseph, where observed as a holy day of obligation, coincides with Palm Sunday, it is, by exception to the general rule, anticipated to Saturday
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18 March; where not observed as a holy day of obligation, the episcopal conference may transfer it to a date outside of Lent.[4]
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25 MarchAnnunciation of the LordIf the Solemnity of the Annunciation of the Lord falls on any day of Holy Week, it is always transferred to the Monday after the Second Sunday of Easter
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(30 March to 9 April),[3] rather than, in accordance with the general rule, to the next day not occupied by a celebration with at least the rank of feast
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(22 March to 25 April)Resurrection of the Lord (Easter)Concludes the Paschal Triduum that commemorates also the last supper, passion, death, burial and resurrection of Christ. See Computus for date computation. Begins Octave of Easter, eight consecutive days celebrated as one continuous solemnity, ending 29 March to 2 May). See also Resurrection of Jesus.
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Thursday after the Sixth Sunday of Easter (40th day of Eastertide - 30 April to 3 June)Ascension of the LordIf not a holy day of obligation, transferred to replace the Seventh Sunday of Easter (3 May to 6 June)
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50th day of Eastertide (10 May to 13 June)
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Pentecost(Whitsunday); always on a Sunday
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Sunday after Pentecost (17 May to 20 June)Trinity Sunday
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Thursday after Trinity Sunday (21 May to 24 June)Most Holy Body and Blood of Christ"Corpus Christi"; in some dioceses, celebrated on the following Sunday (24 May to 27 June).
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Friday (8 days after Corpus Christi Thursday, 5 days after Corpus Christi Sunday) (29 May to 2 July)Most Sacred Heart of Jesus
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24 JuneNativity of Saint John the Baptist
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29 JuneSaints Peter and Paul
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15 AugustAssumption of Mary
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1 NovemberAll Saints
Last Sunday before Advent (20-26 November)
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Our Lord Jesus Christ the King of the UniverseReplaces 34th Sunday in Ordinary Time
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8 DecemberImmaculate Conception of the Blessed Virgin Mary
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25 DecemberNativity of the Lord (Christmas)everywhere a holy day of obligation; see also Nativity of Jesus
No, not if it is called for in the Ordo, or according to the rubrics. A Gloria is always called for on Sundays outside of Lent, and on Solemnities and Feasts. It is omitted during Lent, and on ferias (weekdays which are not Solemnities or Feasts).
That is called a white stole. It is used during solemnities and easter.
ritual, service, rite, observance, commemoration, solemnities, formality, decorum
Solemnities are the serious, ceremonial parts of an occasion. "We observed the funeral with prayers, recitations, and other solemnities." "Once the solemnities were out of the way, we eagerly partook of the refreshments."
Required attendance at Mass are all Sundays and Holy Days of Obligation. In the US there are 6 Holy Days that a are Solemnities (Solemnity of Mary, Christmas, Ascension, Assumption, Immaculate Conception, All Saints. The other solemnities and feast days are optional unless on a Sunday
ritual, service, rite, observance, commemoration, solemnities, formality, decorum
In order, most important first: Solemnities, Feasts, Memorials and Optional Memorials.
Roman Catholic AnswerAll Sundays are Solemnities, the highest rank. Feasts are of the Second rank.
After the Nicene Creed on Sundays and Solemnities.
Catholic AnswerThe most important celebration of the Church year is the Easter Triduum, which is also a season, howbeit a very short one. The Church lists the importance of various celebrations in a Table at the front of the Breviary: The Table of Liturgical Days lists the following precedence in the latest edition of the Breviary:1. Easter triduum of the Lord's Passion and resurrection.2. Christmas, Epiphany, Ascension, and Pentecost, Sundays of Advent, Lent, and the season of Easter.Ash WednesdayWeekdays of Holy Week, Monday to Thursday inclusive,Days within the octave of Easter3. Solemnities of the Lord, the Blessed Virgin Mary, and saints listed in the general calendar, All Soul's Day4. Proper solemnities.
Roman Catholic AnswerYes: Abstinence from meat, or from some other food as determined by the Episcopal Conference, is to be observed on all Fridays, unless a solemnity should fall on a Friday.There are two solemnities that can fall during Lent: the Annunciation of the Lord and Saint Joseph's Day. Whenever either of these solemnities falls on a Friday, the faithful are dispensed from the requirement to abstain from meat.You may have noted as well that Canon 1251 doesn't single out Fridays in Lent but says that "Abstinence . . . is to be observed on all Fridays". Many Catholics do not realize that the Catholic Church still requires Catholics to abstain on all Fridays of the year, either from meat or from some other good thing (as determined by each country's national conference of bishops).
Roman Catholic AnswerYes: Abstinence from meat, or from some other food as determined by the Episcopal Conference, is to be observed on all Fridays, unless a solemnity should fall on a Friday.There are two solemnities that can fall during Lent: the Annunciation of the Lord and Saint Joseph's Day. Whenever either of these solemnities falls on a Friday, the faithful are dispensed from the requirement to abstain from meat.You may have noted as well that Canon 1251 doesn't single out Fridays in Lent but says that "Abstinence . . . is to be observed on all Fridays". Many Catholics do not realize that the Catholic Church still requires Catholics to abstain on all Fridays of the year, either from meat or from some other good thing (as determined by each country's national conference of bishops).