How did the piedmont region in georgia formed.

In Georgia and the Carolinas the rivers mostly rise in the Piedmont and flow to the southeast, cutting through the metamorphic rocks that extend in the direction of the ocean underneath the sandy soils of the Coastal Plain. ... The boundary of the Piedmont on the northwest margin is the Blue Ridge Mountains

Except common history

It is useful for historians to write narratives so that history can be passed on from their point of view.  think about a story being told in third person, then think about it again being told in first person, by someone who actually experienced the event.