In the early days of Islam, according to Islamic sources, a Jewish tribe of Arabia (see Banu Qurayza) was alleged to have broken the peace treaty with the early Muslims, resulting in the execution of over 700 Jews. Many of the surviving women were subsequently taken by Muslim soldiers; one of these, Safiyya bint Huyayy whose husband Kenana ibn al-Rabi had also been killed, was taken by Muhammad as his wife. There were notable persecutions of Jews such as the 1033 Fez massacre, 1066 Granada massacre and 1834 looting of Safed. In the late 19th century, the Zionist movement sought to re-establish a Jewish homeland in historic Israel, within the historical territory of Palestine, also known as Zion, also known as the Holy Land. This created tensions between the Palestinian Jews and Palestinian Arabs, leading to, beginning in 1947, a civil war and the subsequent exodus of many Palestinian Arabs and many Jews from Muslim countries. In 1948, the state of Israel was declared, and shortly after its declaration of independence, the Arab States declared war on Israel, in which the Israelis were victorious. After the 1948 Arab–Israeli War, twelve more wars were fought between the Arab States and Israel. The Arab–Israeli conflict has weakened Islamic–Jewish relations severely.