Ma'ayan Harod

Ma'ayan Harod (Hebrew: מעיין חרוד, lit. 'Harod's spring') or Ain Jalut (Arabic: عين جالوت ‘ayn Jālūt, or عين جالود ‘ayn Jālūd, and Hebrew: גילות, romanized: ain djeluth) is an all-year spring in the Harod Valley (the easternmost part of the Jezreel Valley) on the northwest corner of Mount Gilboa, that was the location of the 13th-century Battle of Ain Jalut. This was a major turning point in world history that saw the Mamluks inflict the first of two defeats on the Mongols that ultimately halted their invasion of the Levant and prevented an invasion of Egypt.

The traditional name of Ain Jalut has been used since the 12th century and is commonly believed to mean "Spring of Goliath". Alternative etymologies have suggested that it might be derived from the name Gilead, potentially an archaic name for Mount Gilboa. Other names given to the site include "En Harod" or "Ein Harod", a biblical place name that was associated with Ain Jalut in the 19th century; subsequent scholarship, specifically the work of Israel Finkelstein and Oded Lipschits, has refuted this connection. Other associations have also been suggested, including in the 1841 Biblical Researches in Palestine, which linked it to the "spring in Jezreel" where Saul pitched his tent before his final battle, but this was rejected in 1847 and has gained little traction since. The spring is still sometimes known as the "Fountain of Jezreel", as well as "Gideon's Fountain".

According to the medieval chronicler Baha ad-Din ibn Shaddad, there was a prosperous village at the site in the Middle Ages. It was captured by the Crusaders and retaken by Saladin in 1183 CE (579 AH). A later Palestinian village was also established in the area in the late 19th century.