Eid al Adha-Islam Oct. 15-18

Also called the Feast of Sacrifice, this day celebrates the willingness of Abraham to sacrifice his son to God.

 Also called the Feast of Sacrifice, this day celebrates the willingness of Abraham to sacrifice his son to God. It also commemorates the end of the Hajj pilgrimage to Mecca.
http://islam.about.com/od/hajj/a/adha.htm