Eid Wishes to All

Eid al-Adha also called Feast of the Sacrifice, the Major Festival, the Greater Eid is an important religious holiday celebrated by Muslims worldwide to honour the willingness of the prophet Ibrahim (Abraham) to sacrifice his young first-born son Ismail (Ishmael) as an act of submission to Allah's command and his son's acceptance to being sacrificed, before Allah intervened to provide Abraham with a Lamb to sacrifice instead. In the lunar Islamic calendar, Eid al-Adha falls on the 10th day of Dhu al-Hijjah and lasts for four days. In the international Gregorian calendar, the dates vary from year to year, drifting approximately 11 days earlier each year.

Ref# http://en.wikipedia.org/wiki/Eid_al-Adha