Cyropaedia

They say, moreover, that sometimes this express does not stop all night, but the night-messengers succeed the day-messengers in relays, and when that is the case, this express, some say, gets over the ground faster than the cranes. If their story is not literally true, it is at all events undeniable that this is the fastest overland travelling on earth; and it is a fine thing to have immediate intelligence of everything, in order to attend to it as quickly as possible.

Now, when the year had gone round, he[*](Cyrus completes his conquests) collected his army together at Babylon, containing, it is said, about one hundred and twenty thousand horse, about two thousand scythe-bearing chariots and about six hundred thousand foot.

And when these had been made ready for him, he started out on that expedition on which he is said to have subjugated all the nations that fill the earth from where one leaves Syria even to the Indian Ocean. His next expedition is said to have gone to Egypt and to have subjugated that country also.