The one-humped camel or dromedary is already sporadically attested in the Early Dynastic Period, but it was not regularly used until much later. Foreign conquerors (Assyrians, Persians, Alexander the Great) brought the camel on a greater scale to Egypt. Certainly in the Ptolemaic Period, and perhaps already under the Persians (525-343 BC), the camel (also the two-humped camel) was used as main transport animal for the desert. [X]