May I ask what prehistoric events you're talking about the dating of? It seems to me that the only prehistoric events that we know of are those brought to us through scientific investigations and would have little, if any, connection to Genesis or the Bible. Are you suggesting that the writers of Genesis knew about the ice age?
I'd be hard put to believe that even an ice age could have significant influence on a culture that didn't arise for five thousand years following its abatement. People just don't seem to have that long of an outlook: not seeing the forest for the trees, as it were.
The Germanic legends about the demise of ancient ice kingdoms don't need to refer back to the Ice Age to be understood, but to last winter. And flood myths don't need to be based on ancestral memories of the catastrophic filling of the Black Sea through the Bosporus three thousand years in ones past when the spring floods took out the farm for the last three years running.
I'm sure culture would have developed much differently had there not been an Ice Age, but would it do so in anyway we'd be able to quantify? Maybe the Chinese would have been able to populate Europe from the North instead of the Arabians populating it from the South, and Eric Idle would have been singing "I Like Engleses. We only come up to their knees" Or like Tanypteryx's tag line asks "What if Eleanor Roosevelt had wings?",
Tofu cars taste even better than regular cars World's first green truth.