In this November 4, 1948 file photo, Arab refugees stream from what was then Palestine, on the road to Lebanon in northern Israel to flee fighting in the Galilee region in the Arab-Israeli war. An Israeli high school principal has been summoned for a hearing by the country's Education Ministry for using a textbook presenting the Palestinian narrative about events surrounding Israel's creation in 1948, officials said Friday, Oct. 1, 2010. (AP Photo, File)

Palestinian Ahmed Elaian, 86

FILE - In this Saturday, May 14, 2005 file photo, Palestinian Ahmed Elaian, 86, shows the keys of his home in Israel, abandoned during the 1948 Mideast war, on the 57th anniversary of Al Naqba, or day of catastrophe in the Kalandia refugee camp near the West Bank town of Ramallah. An Israeli high school principal has been summoned for a hearing by the country's Education Ministry for using a textbook presenting the Palestinian narrative about events surrounding Israel's creation in 1948, officials said Friday, Oct. 1, 2010. Israeli Jews celebrate 1948 as the year of their independence, while Palestinians and Israel's Arab citizens mourn what they call 'al-naqba', the catastrophe, the year of their defeat and mass exodus (AP Photo/Muhammed Muheisen, File)