Of the work of Assyria, Greece and Rome, little is actually known except from history or inference. It may be safely assumed that the Assyrian craft kept pace with the varying taste and refinement of Greece and all the older civilizations. Important pieces of wooden Roman sculpture which once existed in Greece and other ancient countries are only known to us from the descriptions of Pausanias and other classic writers. Many examples of the wooden images of the gods, were preserved down to late historic times. The Palladium, or sacred figure of Pallas, which was guarded by the Vestal Virgins in Rome and was fabled to have been brought by Aeneas from the burning Troy, was one of these wooden figures.