The archaeologists working at Ziyaret Tepe, the probable site of the ancient Assyrian city of Tushan, believe that this language may have been spoken by deportees originally from the Zagros Mountains, on the border of modern-day Iran and Iraq. In keeping with a policy widely practiced across the Assyrian Empire, these people may have been forcibly moved from their homeland and resettled in what is now south-east Turkey, where they would have been set to work building the new frontier city and farming its hinterland. The evidence for the language they spoke comes from a single clay tablet, which was...