Eid al-Adha also called the "Festival of Sacrifice", is the second of two Islamic holidays celebrated worldwide each year (the other being Eid al-Fitr), and considered the holier of the two.
It honors the willingness of Ibrahim (Abraham) to sacrifice his son as an act of obedience to ’ command. Before Abraham sacrificed his son, * provided a male goat to sacrifice instead.
In commemoration of this, an animal is sacrificed and divided into three parts: one third of the share is given to the poor and needy; another third is given to relatives, friends and neighbors; and the remaining third is retained by the family.
In the Islamic lunar calendar, Eid al-Adha falls on the 10th day of Dhu al-Hijjah.
In the international (Gregorian) calendar, the dates vary from year to year drifting approximately 11 days earlier each year. Eid al-Adha is the latter of the two Eid holidays, the former being Eid al-Fitr.