The earliest available description of the location of Makah identifies it with the area of Al-Anbar in the Mesopotamian desert between [https://en.wikipedia.org/wiki/Al-Khalidiya,_Iraq Al-Kaldiya] and Carra.
Two events mentioned in the Islamic Quran that seem possible to use for dating his this conversion are the defeat of the Romans presumably by Khosrau in chapter 30 verse 2 and the splitting of the moon Moon mentioned in 54:1. Both occurred in 610AD. The occultation adds more reason behind the adoption of the Sasanian Star and Crescent as a symbol for Islam.
