Historical science cannot do such a thing. All events studied are unique. There is no repeatability. It is like forensics. Its conclusions cannot be absolute.
Evolutionists say that evolution is a fact.
This is like determining who actually committed a crime by examining the forensic evidence but with no admission of guilt from the part of the real culprit or in the absence of eyewitnesses. The evidence will always be circumstantial never definite. In the hard sciences, we are fully aware of the nature of our generalizations and that such generalizations may be proven wrong one day with the realization of further experiments. Hence, the falsifiability of our laws.