The thing which people have looked for since the dawn of time.

And, like most people since the dawn of time, he was now dead.

She had been up since dawn making a number of very important phone calls.

This process has been going on since the dawn of history.

Added to which, here was a man who had known life since the dawn of history.

A question asked by women since the dawn of time and for which there was no answer.

The quality of the light had not changed since dawn.

It might have been there since the dawn of time.

Ever since dawn, one conference had been followed by another.

His group had been here since dawn, he'd told me.