It is singular that this extremely ancient period is the one of which, although the oldest, we know most, for the monuments, the papyri, and especially the tombs in the great cemeteries of Sakkarah and Ghizeh, give us the fullest details of the political and social life of Egypt during the fourth, fifth, and sixth dynasties, with sufficient information as to the three first dynasties to check and confirm the lists of Manetho. We really know the life of Memphis 6000 years ago better than we do that of London under the Saxon kings, or of Paris under the descendants of Clovis. The sixth dynasty was succeeded by a period which seems to have been one of civil war and anarchy, during which there was a complete cessation of monuments; or, if they existed, they have not yet been discovered. The probable duration of this eclipse of Egyptian records is somewhat uncertain, as we cannot be sure, in the absence of monuments, that the four dynasties of short reigns assigned to the interval between the sixth and the eleventh dynasties by Manetho, and the numerous names of unknown kings on the tablets, were successive sovereigns who reigned over united Egypt, or local chiefs who got possession of power in different parts of the Empire. All we can see is that the supremacy of Memphis declined, and that its last great dynasty was replaced, either in whole or in part, by a rebellion in Upper Egypt which introduced two dynasties whose seat was at Heracleopolis on the Middle Nile, In any case the duration of this period must have been very long, for the eclipse was very complete, and when we once more find ourselves in the presence of records in the eleventh dynasty, the seat of empire is established at Thebes, and the state of the arts, religion, and civilization are different and much ruder than they were at the close of the great Memphite Empire with the sixth dynasty. Mariette says, "When Egypt, with the eleventh dynasty, awoke from its long sleep, the ancient traditions were forgotten. The proper names of the kings and ancient nobility, the titles of the high functionaries, the style of the hieroglyphic writing, and even the religion, all seemed new. The monuments are rude, primitive, and sometimes even barbarous, and to see them one would be inclined to think that Egypt under the eleventh dynasty was beginning again the period of infancy which it had already passed through 1500 years earlier under the third." The tomb of one of these kings of the eleventh dynasty, Entef I., is remarkable as showing on a funeral pillar the sportsman-king surrounded by his four favourite dogs, whose names are given, and which are of different breeds, from a large greyhound to a small turnspit.