Eid al-Adha is a three day Muslim holiday held after the Hajj, the annual pilgrimage to Mecca, and is also referred to as 'The Feast of Sacrifice'.It is the second most important festival in the Muslim calendar. The Hajj is spent commemorating the trials of the Prophet Abraham, and celebrations of Eid al-Adha are marked by the sacrifice of an animal such as a sheep,camel or goat. This is done to remember the prophet's greatest triumph; when he proved his willingness to kill his only son in order to submit to Allah's will. Most of the meat from the sacrifice is given away; one third is eaten by immediate family; one third is given to friends; and one third is given to the poor.