Histories

In the fourth year the Egyptians, whom Cambyses had enslaved, revolted from the Persians; thereupon Darius was even more eager to send expeditions against both.

But while Darius was making preparations against Egypt [30,27] (nation), Africa Egypt and Athens [23.7333,37.9667] (Perseus)Athens, a great quarrel arose among his sons concerning the chief power in the land. They held that before his army marched he must declare an heir to the kingship according to Persian law.