Although extraordinary valor was displayed by the entire corps of Spartans and Thespians, yet bravest of all was declared the Spartan Dienekes. It is said that on the eve of battle, he was told by a native of Trachis that the Persian archers were so numerous that, their arrows would block out the sun. Dienekes, however, undaunted by this prospect, remarked with a laugh, 'Good. Then we will fight in the shade.
Herodotusthe Egyptians were the first to discover the solar year, and to portion out its course into twelve parts both the space of time and the seasons which they delimit. It was observation of the course of the stars which led them to adopt this divisionIt is also the Egyptians who first bought into use the names of the twelve gods, which the Greeks adopted from them
Herodotus