He was visited one day in the cave on Mount Hira, in which he used to go to meditate, by Jibreel, an angel sent down from Allah, in 610. ... Three years after the first revelation, Allah commanded Muhammad to spread the message to the public. ... It should be noted that Ali ibn Abu Talib did not become a Caliph until the fall of his three preceding Caliphs. ... Debatably, the most important Imams for the Shias are the first three: Ali, Hasan, and Husayn. ... The shrine is visited by Shias, especially in the first 10 days of Muharram to recognize the martyrdom of their third Imam. ...

• Word Count: 2747
• Approx Pages: 11
• Has Bibliography
• Grade Level: High School