D. How does this monotheistic religion differ from the other two major monotheistic religions?

• Their holy book is the Qur'an. 
• Their scriptural language is Arabic. 
• They worship 5 times a day, every day.
• They celebrate Eid ​ul-​Fitr and ​Eid ​ul-​Adha.
• Shia Muslims believe that Ali, Muhammad's cousin and son-in-law, was the rightful successor to Muhammad.
• Age of religion is 
  1000-​5000 ​Years ​Old.
• Mainly practiced in Iran,​Azerbaijan,​Bahrain ​and ​Iraq.​
• 100,​000,​000-​1,​000,​000,​000 followers.