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Shiavault - a Vault of Shia Islamic Books History of Islam Section Four : From Hegira To the Universal Invitation Chapter One : Emigration to Yathrib The Basis of Islam's Influences in Yathrib Wadi al-Qura is a long valley along with the trade route from Yemen to Damascus. Along this valley, which runs from the north to the south, there were numerous oases surrounded by grass and pastures.[^1] The caravans made use of them on their trips along this valley.
On one of these oases, five hundred kilometers north of Mecca, there was the old city of Yathrib which was later called Madinat al-Rasul (the city of the Messenger) after the Holy Prophet's emigration to it and then al-Madinah (Medina). The structure and social conditions of Yathrib was quite different from those of Mecca whose people were engaged in agriculture and orchard keeping. There lived in this city three great Jewish tribes of Banu’l-Nazir, Banu-Qaynuqa` and Banu-Qurayzah.
The two famous tribes of Aws and Khazraj are originally from the Yemen (i.e. descendants of Qahtan); but after the destruction of the Ma'rib Dam, they migrated from the south to live in Yathrib along with the Jewish inhabitants. During the years of the Holy Prophet’s promulgation of Islam in Mecca, some events occurred in Yathrib which paved the way for his emigration. These events had made this city the center for the propagation of Islam.
Among these events were the following: The Jews had owned the fertile lands around the city; they had created numerous palm groves, enjoyed wealth and excelled all others economically.[^2] Once in a while, some quarrels occurred between them and the tribes of Aws and Khazraj.
The Jews used to threaten them, saying, “In the near future, there shall come a new prophet whom we will follow and with his help we will root you out, just like the peoples of `ad and Iram.”[^3] Because the Jews enjoyed a higher cultural status and they were respected by the idolaters, who believed in whatever the Jews would tell them, the issue of prophethood had rooted in the minds of the tribes of Aws and Khazraj.
Since older times, wars and bloodshed took place between the tribes of Aws and Khazraj. The last of these conflicts was the war of Bu`ath. These conflicts had resulted in a lot of casualties and damages on both sides who, because they had suffered greatly, looked forward to ceasefire and compromise. However, there was no impartial person to carry out such a mission.