Nearly two million Muslims embark each year on the Hajj, the holy pilgrimage to Mecca that is one of Islam's "Five Pillars" of religious obligation. The rituals of Hajj are precise and rooted in ancient history, spirituality, and above all complete submission to God. What do you know about the Hajj? Test your knowledge of this ancient pilgrimage and take our quiz.
1. Muslims must go on the Hajj how many times in their life?
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