What was the Sumerian’s greatest contribution to civilization?

two important rivers located in the eastern portion of the Fertile Crescent.

  What were the three major stages in the development of cuneiform?

     What was the most important Sumerian industry in terms of commercial activity?

     Who were the first people to use iron extensively?

  What empire was responsible for the fall of the Northern Kingdom of Israel in 721 B.C.?

  In what year did the Romans destroy Jerusalem?

Name the world’s oldest living civilization.

Name one Greek historian