Eid al-Adha, also called the "Festival of Sacrifice", is the second of two Islamic holidays celebrated worldwide each year, and considered the holier of the two.
It honours the willingness of Ibrahim to sacrifice his son as an act of obedience. But, before Abraham could sacrifice his son, God provided a lamb to sacrifice instead.
Muslims worldwide celebrate every year Eid al-Adha through sacrificing sheep and divide it into three parts: One to the poor and needy, the second is kept for home, and the third to relatives.