Fig. 16 belongs to the same group of sculptures as the seated figure just discussed. Although this head gives no such impression of lifelikeness as the best Egyptian portraits, it yet shows careful study. Cheeks, chin, and mouth are well rendered. The eyelids, though too wide open, are still good; notice the inner corners. The eyebrows are less successful. Their general form is that of the half of a figure 8 bisected vertically, and the hairs are indicated by slanting lines arranged in herring-bone fashion. Altogether, the reader will probably feel more respect than enthusiasm for this early Babylonian art and will have no keen regret that the specimens of it are so few. The Assyrians were by origin one people with the Chaldeans and were therefore a branch of the great Semitic family. It is not until the ninth century B.C. that the great period of Assyrian history begins. Then for two and a half centuries Assyria was the great conquering power of the world. Near the end of the seventh century it was completely annihilated by a coalition of Babylonia and Media. With an insignificant exception or two the remains of Assyrian buildings and sculptures all belong to the period of Assyrian greatness. The principal sites where explorations have been carried on are Koyunjik (Nineveh), Nimroud, and Khorsabad, and the ruins uncovered are chiefly those of royal palaces. These buildings were of enormous extent. The palace of Sennacherib at Nineveh, for example, covered more than twenty acres. Although the country possessed building stone in plenty, stone was not used except for superficial ornamentation, baked and unbaked bricks being the architect's sole reliance. This was a mere blind following of the example of Babylonia, from which Assyria derived all its culture. The palaces were probably only one story in height. Their principal splendor was in their interior decoration of painted stucco, enameled bricks, and, above all, painted reliefs in limestone or alabaster.