Multiple choice general knowledge history The first year of the Islamic calendar marks the following event: The birth of Muhammad The Qu'ran is assembled into a single sacred text The division of the Sunnis and the Shiites Muhammad's flight from Mecca to Medina Reveal answer Fill a bubble to check yourself D Correct answer Explanation The Islamic calendar (Hijri calendar) begins with Muhammad's Hijra (flight/migration) from Mecca to Medina in 622 CE. This event marks the establishment of the first Muslim community and is year 1 AH (After Hijra).