About Eid al-Adha: One of Iraq's biggest holidays, Eid al-Adha concludes the pilgrimage to Mecca. Muslims worldwide celebrate it by slaughtering sheep, goats and cattle. A familiar story: Eid al-Adha commemorates the patriarch Abraham's readiness to sacrifice his son in God's test of his faith. At the last moment, God substituted a sheep for the son. The story is shared by Islam, Judaism and Christianity. Helping others: As part of the festival, each Muslim family is encouraged to sacrifice an animal and divide it into three parts – one-third for the needy, one-third for friends and family, and one-third for...