 The dating is significant, since the available evidence does not attest the existence of Nabataean monarchy until the second century BC.This nameless Nabataean king perhaps could be linked with a reference from the Zenon archive (the second historical mention of the Nabataeans) to deliveries of grain to "Rabbel's men", Rabbel being a characteristically royal Nabataean name, it is thus possible to link Rabbel of the Zenon archive with the nameless king of Bosra's inscription, though it is highly speculative.A recent papyrological discovery, the Milan Papyrus, provides further evidence.