parts of painted rooms surviving from Rome and elsewhere, which somewhat help to fill in the gaps of our knowledge of wall-painting. From Roman Egypt there are a large number of what are known as Fayum mummy portraits, bust portraits on wood added to the outside of mummies by a Romanized middle class; despite their very distinct local character they are probably broadly representative of Roman style in painted portraits, which are otherwise entirely lost. Nothing remains of the Greek paintings imported to Rome during the 4th and 5th centuries, or of the painting on wood done in Italy during that period. In sum, the range of samples is confined to only about 200 years out of the about 900 years of Roman history, and of provincial and decorative painting. Most of this wall painting was done using the a secco (dry) method, but some fresco paintings also existed in Roman times. There is evidence from mosaics and a few inscriptions that some Roman paintings were adaptations or copies of earlier Greek works. However, adding to the confusion is the fact that inscriptions may be recording the names of immigrant Greek artists from Roman times, not from Ancient Greek originals that were copied. The Romans entirely lacked a tradition of figurative vase-painting comparable to that of the Ancient Greeks, which the Etruscans had emulated. Variety of subjects Roman painting provides a wide variety of themes: animals, still life, scenes from everyday life, portraits, and some mythological subjects. During the Hellenistic period, it evoked the pleasures of the countryside and represented scenes of shepherds, herds, rustic temples, rural mountainous landscapes and country houses. Erotic scenes are also relatively common. In the late empire, after 200AD, early Christian themes mixed with pagan imagery survive on catacomb walls. Landscape and vistas The main innovation of Roman painting compared to Greek art was the development of landscapes, in particular incorporating techniques of perspective, though true mathematical perspective developed 1,500 years later. Surface textures, shading, and coloration are well applied but scale and spatial depth was still not rendered accurately. Some landscapes were pure scenes of nature, particularly gardens with flowers and trees, while others were architectural vistas depicting urban buildings. Other landscapes show episodes from mythology, the most famous demonstrating scenes from the Odyssey. In the cultural point of view, the art of the ancient East would have known landscape painting only as the