Final answer:
Yathrib's name was changed to Medina
Step-by-step explanation:
Yathrib's name was changed to Medina. The movement of early Muslims from Mecca to Yathrib, which is now known as Medina, is called the Hijra. The Hijra was a significant event in Islamic history as it marked the beginning of the Islamic calendar.
Learn more about The Hijra (Migration of early Muslims)