To play the devil, how is history scientific? I mean as far as we know theres only one history. And parts of it are not known to us. But in absence of recorded

To play the devil, how is history scientific? I mean as far as we know theres only one history. And parts of it are not known to us. But in absence of recorded accounts (and even in the face of them), aren’t we bound to interpretation? Science measures the tangible. History isn’t.