Yathrib

The Yathrib timeline starts with a point of divergence in 622, when Muhammed does not make a stronghold in Yathrib to attack Mecca. He  converts to Christianity in Jerusalem, where he becomes the Bishop of Hijaz. he does not seek war, he is pacifist. therefore, no Islam as we see it now, occurs.

Timeline
With the peoples of the Arabian peninsula being divided without religious motivation, the 7th and 8th century resembled the situation in Western Europe after the collpse of the Roman Empire- Arabian lords and nobles created their own petty-kingdoms in Egypt (Kingdom of Misrah), Palestine and Aram (Syria west of the Euphrates). Also, the Persian empire collapsed, leaving:
 * Athurya
 * Khaldiya
 * Medea
 * and a rump Persian state in Afghanistan, and southeastern Iran.