Today marks the start of the Muslim holiday Eid al-Adha, a time of prayer and celebration for Muslims throughout the world.

Known as the “Feast of Sacrifice,” the Eid commemorates Abraham’s willingness to sacrifice his son based on God’s command.

Starting today, many Muslim communities will hold day-long festivals held in local mosques and other public spaces.The Eid is celebrated with prayers, gifts, distribution of meat and other social activities.

The start of Eid holiday marks the end of the yearly pilgrimage to Mecca, also known as Hajj -- one of the “five pillars” of the Islamic faith. The other pillars include a declaration of faith, daily prayers, offering charity and fasting during Ramadan.