Marked

From Hesiod's poem to Nyx, the Greek personification of night:

"There also stands the gloomy house of Night;

ghastly clouds shroud it in darkness.

Before it Atlas stands erect and on his head

and unwearying arms firmly supports the broad sky,

where Night and Day cross a bronze threshold

and then come close and greet each other."

(Hesiod, Theogony, 744 ff. )