It is so anomalous among the Dead Sea Scrolls – its author, script, style, language, genre, content, and medium all differ to the other scrolls – that scholars believe it must have been placed in the cave at a different time to the rest of the ancient documents.
It is 200 years since Swiss explorer Johann Ludwig Burckhardt rediscovered the ancient Nabateaen city of Petra, Jordan. He entered the city dressed in the disguise of a Bedouin on the pretext of making a sacrifice at the tomb of Aaron.