Question about the Bible/Religion?

What does the bible have to do with people outside of the mideast. Seriously the people of the bible are all around the Middle East, but at that same time other ethnicities with completely different cultures/religions existed, for example the people of the bible never met a Celt or Viking, Aztec, Mayan, or Samurai or ever been in those lands, why/how is the middle east any more importaint than anywhere else.