This page was last updated: October 10, 2007
In Roman Catholicism, Holy Days of Obligation are the other days in addition to Sundays that Catholics are obligated to attend Mass. Below are the Holy Days of Obligation and Liturgical celebrations for the year 2007:

Holy Days:
August 15, 2007  Solemnity of the Assumption of the Blessed Virgin Mary
November 1, 2007  Solemnity of All Saints 
December 8, 2007  Immaculate Conception of the Blessed Virgin Mary
December 25, 2007  The Nativity of the Lord (Christmas) 

Liturgical Celebrations:
February 21, 2007  Ash Wednesday   
April 7, 2007  Holy Saturday: **The Easter Vigil**   
April 8, 2007   Easter Sunday
May 20, 2007 The Ascension of the Lord  (Solemnity Observed)
May 27, 2007  Pentecost Sunday  (Solemnity Observed)
November 25, 2007  Our Lord Jesus Christ the King (Last Sunday of the liturgical year)
December 2, 2007  First Sunday of Advent  (Beginning of new liturgical year) 
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HOLY DAYS OF OBLIGATION