People have fought with each other since the 'dawn of' history/time/civilization.
She drove 'from dawn to/until dusk'. [=from early morning until early evening]
The solution finally 'dawned on' him. [=he finally saw the solution]
(..) Oh Dad, can't I come? No, son. I never get to go anywhere. Oh young master, one day you will be king; then you can chase those slobbering, mangy, stupid poachers from dawn until dusk. Hey Uncle Scar, guess what! I despise guessing games. I'm going to be king of Pride Rock. Oh goodee. (..)1994 The Lion King