Michaelmas
Michaelmas (/ˈmɪkəlməs/ MIK-əl-məs; also known as the Feast of Saints Michael, Gabriel, and Raphael, the Feast of the Archangels, or the Feast of Saint Michael and All Angels) is a Christian festival observed in many Western Christian liturgical calendars on 29 September, and on 8 November in the Eastern Christian traditions.
Michaelmas has been one of the four quarter days of the English and Irish financial, judicial, and academic year.[5]
In the Christian angelology of some traditions, the Archangel Michael is considered as the greatest of all the angels; being particularly honored for defeating Lucifer in the war in heaven.[6]