Original sentence: Israel was established in parts of Mandate Palestine in 1948, and in the wake of the 1948 Arab-Israeli war, the West Bank and East Jerusalem were occupied by Jordan, and the Gaza Strip by Egypt, with both countries continuing to administer these areas until Israel occupied them during the 1967 war.The region was administered by the Ottoman Empire until World War I (with no district corresponding to Palestine), and then by the British Mandatory authorities.Two prominent leaders of the Palestinian nationalists were Mohammad Amin al-Husayni, Grand Mufti of Jerusalem, appointed by the British, and Izz ad-Din al-Qassam (himself an immigrant from [northern] Syria)
Edited sentence: Israel was established in parts of Palestine in 1948, and in the wake of the 1948 Arab-Israeli war, the West Bank and East Jerusalem were occupied by Jordan, and the Gaza Strip by Egypt, with both countries continuing to administer these areas until Israel occupied them during the 1967 war.Palestine was administered by the Ottoman Empire until World War I, and then by the British Mandatory authorities.Two prominent leaders of the Palestinian nationalists were Mohammad Amin al-Husayni, Grand Mufti of Jerusalem,appointed by the British, and Izz ad-Din al-Qassam