The name Hadad-rimmon combines the names of two Syrian gods: the storm god Hadad and the thunder god Rimmon. People mourned greatly for these gods, similar to the weeping for Tammuz, a ceremony in Mesopotamian fertility cults.
Joshua captured Megiddo (Joshua 12:21), a major city on the southwest edge of the Jezreel Valley. It was given to the tribe of Manasseh (Joshua 17:11).
Megiddo controlled a key pass on the main highway from Egypt to Mesopotamia, making it very important strategically. It was a district capital during King Solomon’s reign (1 Kings 4:12).
King Josiah was fatally wounded in a battle against Pharaoh Neco and the Egyptians on the plain of Megiddo (2 Chronicles 35:22–23). The mountain of Megiddo is the site of the great battle described in Revelation 16:16.