Note 116 — Chapter XIII · UNITY AND ANTIQUITY OF MAN.

Perhaps the earliest certain date in Egyptian history is that of Thothmes III. of the eighteenth dynasty, ascertained by Birch on astronomical evidence as about 1445 B.C. (about 1600, Manetho); and it seems nearly certain that before the eighteenth dynasty, of which this king was the fifth sovereign, there was no settled general government over all Egypt.