In Perspective: What's the Difference Between Shi'ah and Sunni?

A veteran in Muslim evangelism who asked not to be named told CT that Shi'ites have been more likely to accept Christianity. "Historically in the heartland of Islam—the Middle East and North Africa—Iran has been by far the most responsive country to the gospel," the source said. "Most people believe that is because of the Shi'ite belief system."

Woodberry says there are interesting parallels between Shi'ah and Christianity. "What we have been seeing this month take place in Iraq is a commemoration in Karbala to recognize the death of Muhammad's grandson Hussein," Woodberry says. "His death to Shi'ites has a similar function to the way Christians look at Jesus."

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