Minnesota's Beyond the Veil

Why don't we see ghosts of cave men or of a roman sholder

How long can a ghost last?

I've never thought of that, but you're right.  I've never heard of an account where someone sees a soldier from ancient Rome or our long lost ancestors.  We do hear of accounts with native american ghosts and ghosts as far back as the revolutionary war.

Perhaps after all this time they've given up and moved on?  I'm not entirely sure what they would be looking or waiting for.

I think it because of their religion, thier way of life. Yes there has been account of seeing them, in "Ireland",  I would like to be able to do more reading on this. If I hear of account or why you maybe dont hear anything I will let you know.