According to tradition, the site in Palestine where David killed Goliath. According to chronicles of the Crusades, the opposing armies of Salah al-Din (Saladin) and the Franks camped there face-to-face in 1183 but departed without military engagement. In 1260 Egyptian Mamluks and Mongols battled there, and the Mongols experienced their first defeat, initiating their decline. Arabic, particularly Egyptian, chronicles regarded this victory as decisive in saving Islam and Cairo from the Mongols. The Mamluk victory resulted in the expulsion of the remaining Christian Crusader states by 1291 and expanded the boundaries of the Mamluk empire to unify Egypt and Syria.