Well, the Sumerians were very hard working and inventive people; most of their inventions are actually used today by almost everyone! (If you didn’t already know) Sumerians invented the first written language, cuneiform, the wheel, the sail boat, the game “Checkers” and much more.
By Sumerians working together they not only created those things, but they also started trading with others which fulfilled them with much needed food, clothing, and raw materials. So by them opening up to trade, they were able to prosper longer.
I hope this helps what you are looking for!
Austin-
The main reasons were that <span>the
navigational tools were inaccurate, the explorers had limited knowledge of
world geography, and the navigators could easily become irretrievably lost</span>. These situations would be detrimental for the well being of the country since there was not a lot of money since they also had to fund other state related things and fight wars against each other.
Explanation:Right to Life, Liberty, Personal Security