By 640, they had brought all of Mesopotamia, Syria and Palestine under the control of the Rashidun Caliphate
Answer:
The battle places they had and the palces and people at that time
Well from what I know they did use obsidian, they did live in large numbers and did take shelter in the highlands. Hope this helps
the answer would be the last one bc at the end of the civil war everything was settled that the U.S was a whole south, north,east,west.... thats what they were fighting for anyways to free slaves and to bring the whole union back lincoln even said he didnt create the civil war just to free slaves but to also bring back the full union as north and south.