“The shrine derived its sanctity from the Book of Genesis, which recounts how Abraham bought the cave from a certain Ephron the Hittite (for “four hundred shekels of silver”) as a burial site for his wife, Sarah. Eventually, Abraham is interred alongside his wife and later other Hebrew patriarchs and matriarchs are buried there as well—Isaac, Jacob, Rebecca, and Leah. Over the centuries, the appeal of this Old Testament narrative to all three monotheistic religions made the cave a trophy for competing empires. It served as a Jewish shrine under Herod the Great, who surrounded it with huge stone walls, a basilica in the Byzantine era, and a mosque after the invasion of the Muslims. The Crusaders made a church of the site in 1100 but it reverted to a mosque when Saladin conquered the area in 1188.”