The ninth year of the hijrah is known as the Year of Embassies, as being the year in which the various tribes of Arabia submitted to the claim of the Prophet and sent embassies to render homage to him.
These tribes had been awaiting the issue of the war between Muhammad and the Quraish; but as soon as that tribe - the principal of the whole nation and the descendants of Ishmael, whose prerogatives none offered to dispute - had submitted, they were satisfied that it was not in their power to oppose Muhammad. Hence their embassies flocked into Medina to make their submission to him. The conquest of Mecca decided the fate of idolatry in Arabia. Now deputations began to arrive from all sides to render the adherence to Islam of various tribes. Among the rest, five princes of the tribe of Himyar professed Islam and sent ambassadors to notify Muhammad of the same. These were the princes of Yemen, Mahra, Oman, and Yamama.