One has to contain one's habit of jumping at once to derive conclusion on merely one
shred of evidence regarding the remote past.
For proper appreciation of the past events one has to judiciously weigh
the evidences collected, analyse them and then try to establish cross contact
with the known accepted historic dates/events, if any.
The archaeological evidences and traditions as enshrined in old literary
works must also be taken into consideration to draw tangible results.