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]
(..) How come you're so talkative? Just naturally blabby, I guess. Ohh! I haven't done so much riding since I quit rustling. That's a miserable occupation. Dusk to dawn, no sleep, rotten food. Hey. I see it. Torches you think? Yeah, maybe. Maybe lanterns. (..)1969 Butch Cassidy and the Sundance Kid
(..) why we shouldn't get married. Okay, I give up, why shouldn't we get married? Well see, that's the thing, I couldn't think of anything at first. An then, it just dawned on me. Your parents... - My parents? - Absolutely. - Your old mom and dad. Thank you for that. (..)2004 The Notebook
(..) His daddy wiped our hair for pack. And rag our skin to keep warm . And ruin our lives. Don't you think? Let show that human what happen when he messed with Sabers. Alert the troops. We attack at dawn. And Diego, bring me that baby. Alive. If I'm gonna enjoy my revenge, I want it to be fresh. (..)2002 Ice Age