Though strongly influenced by Greek and Hellenistic philosophy (especially Platonism and Stoicism), and to a lesser extent also by Jewish ideas, many of the early Greek Hermetic treatises do contain distinctly Egyptian elements, most notably in their affinity with the traditional Egyptian wisdom literature. This used to be the subject of much doubt, but it is now generally admitted that the "Hermetica" as such did in fact originate in Hellenistic and Roman Egypt, even if most of the later Hermetic writings (which continued to be composed at least until the twelfth century CE) clearly did not. It may even be the case that the great bulk of the early Greek "Hermetica" were written by Hellenizing members of the Egyptian priestly class, whose intellectual activity was centred in the environment of the Egyptian temples.