[2]
All Saints' Day (in the Roman Catholic Church [3] officially the Solemnity of All Saints and also called All Hallows or Hallowmas[3] [4]), often shortened to All Saints, is a solemnity [5] celebrated on 1 November by parts of Western Christianity [6], and on the first Sunday after Pentecost in Eastern Christianity [7], in honour of all the saints, known and unknown. In the Western calendar it is the day after Halloween [8] and the day before All Souls' Day.
Links:
[1] http://www.ctio.noao.edu/noao/content/All-Saints-Day
[2] http://upload.wikimedia.org/wikipedia/commons/e/e0/All-Saints.jpg
[3] http://en.wikipedia.org/wiki/Catholic_Church
[4] http://en.wikipedia.org/wiki/All_Saints#cite_note-2
[5] http://en.wikipedia.org/wiki/Solemnity
[6] http://en.wikipedia.org/wiki/Western_Christianity
[7] http://en.wikipedia.org/wiki/Eastern_Christianity
[8] http://en.wikipedia.org/wiki/Halloween