109. For this reason Egypt was cut up; and they said that this king distributed the land to all the Egyptians, giving an equal square portion to each man, and from this he made his revenue, having appointed them to pay a certain rent every year: and if the river should take away anything from any man’s portion, he would come to the king and declare that which had happened, and the king used to send men to examine and to find out by measurement how much less the piece of land had become, in order that for the future the man might pay less, in proportion to the rent appointed: and I think that thus the art of geometry was found out and afterwards came into Hellas also. For as touching the sun-dial and the gnomo* and the twelve divisions of the day, they were learnt by the Hellenes from the Babylonians.
– Herodotus, Book II
* gnomo = an upright staff or an obelisk for observation of the length of the shadow.
Herodotus made his living by being interesting. In a world where most people did not read and could not afford to buy a book even if they could, they would pay to listen to Herodotus recite from his books. They would not pay to be bored. In that world, the names that populate his stories would have some general familiarity to his audience. Their obscurity to us is a barrier that this series seeks to break down.