The Great Isaiah Scroll (1QIsaa) is one of the original seven Dead Sea Scrolls discovered in Qumran in 1947. It is the largest (734 mm) and best preserved of all the biblical scrolls, and the only one that is almost complete. The 54 columns contain all 66 chapters of the Hebrew version of the biblical Book of Isaiah. Dating from ca. 125 BCE, it is also one of the oldest of the Dead Sea Scrolls, some one thousand years older than the oldest manuscripts of the Hebrew Bible known to us before the scrolls’ disc