We have not always existed'.
A family as a unit of time, as a measure of conflict.
The only way to combat this with the tools of history and archaeology is to use them to question these natural assumptions. Denaturalising history.
To show that the present is really accidental, but logical; unnatural, but naturalised. Our present is this, but it could perfectly well have been another, and this is what we must question. History, therefore, would try not so much to tell us who we are and how we got here but, on the contrary, to make explicit the process by which this "we" has become "us". But this "we" has not always existed. The key is to think critically about how the past becomes present (is presented) and is manipulated.