Many years ago there was a flood.  No, not Noah's experience, but there was a   big flood.  Many lives were lost and many continents were affected and yet there   is little mention of it anywhere.  So goes much of history.  There are big gaps   of time where nothing is known about the period of time.  Does it matter?  As we   have no access to it at this time, it would seem that it does not matter.    However, it is helpful to have clues about the existence of things from the   past.
     
         
      If there were those who are good at visual viewing in the past and the future 
      we would have so many lessons to learn that it would probably be overwhelming.  
      So what is the purpose of being aware of these things?  It is to become 
      conscious of possibilities. Possibilities of things that could be, things 
      that might have been and perhaps in that thinking, someone may stumble onto 
      something, perhaps a memory, of useful knowledge.