In 622 AD/1 AH, Muhammad and around 70 Meccan Muhajirun believers left Mecca for sanctuary in Yathrib, an event that transformed the religious and political landscape of the city completely; the longstanding enmity between the Aus and Khazraj tribes was dampened as many of the two Arab tribes and some local Jews embraced Islam. Muhammad, linked to the Khazraj through his great-grandmother, was agreed on as civic leader. The Muslim converts native to Yathrib of whatever background—pagan Arab or Jewish—were called Ansar ("the Patrons" or "the Helpers").