Thanks all for your answers/thoughts.
I’m not bothered by evolution to much, and as it can’t be discussed on these forums it’s no big deal.
Thinking on tracing tribal lineage back to the Jewish story of Adam and Eve, it’s a theory? that our first humans lived in Africa? There is much information about creation myths, and the Jewish story of creation was the jewish writer recognising that there was only one God, were as in African creation myths (which there are a number) they in some myths tell of more than one God.
So if we came “out of Africa” why would there be so many creation myths from within Africa, if the first two people living in the garden knew the one God?
I thought maybe as we are unsure of the actual time of the first humans, so many thousands of years pass by and people add to and take away from stories pasted on by word of mouth.
But I always wondered about Jerusalem being the New City, if the Garden may have been in Africa wouldn’t that be where the new city would be?
As an after thought to my O.P I realised that the tribes could trace their lineage back, or at least talk of the same first man/woman, they would just have different names :o