The southern colonies reliance on slave labor eventually could have caused problems because it kept the economy from developing manufacturing jobs or other jobs for the middle class.
Answer:
If they lacked a written language they wouldn't have the ability to document the trade/deal etc.
Explanation: Incase the other person decides to do something deceitful like break one of the rules of the trade conducted,Ancient people would need evidence that they signed and agreed to the deals' rules. Since Most couldn't read or write in ancient times, They created the cylinder seal to give evidence of the deal taking place, either that or they would have scribes write out most of it for the peope conducting the trade etc.
The significance of the Camp David Accords of 1979 was that "<span>a. The Accords marked a peaceful solution to a dispute between Israel and Egypt." This was especially significant because many had tried to intervene before and had failed. </span>
They would inevitably eventually fall to other nations if they were divided.
United we stand, divided we fall.