In the spring of the year 73, thousands of Roman soldiers raided Masada, a fortress on top of a cliff in the Judean Desert. For seven years, the Jews had tried, unsuccessfully, to split from the Roman empire, and Masada was the last holdout. According to the ancient historian Josephus, when the Romans breached Masada’s walls, they found 960 dead bodies of Jewish extremists, called Sicarii, who had killed themselves to avoid the inevitable enslavement. Because of Masada’s remote location and harsh, dry climate, nothing much happened to the site for the next 2,000 years, until archaeologists started digging it up in 1963. They found attack ramps and siege towers (some of the best examples we have, apparently,