Which of the following is NOT a feature of Sumerian civilization? AP World History Chapter 1 Which of the following is NOT a feature of Sumerian civilization? (A) a simplified alphabet of 22 letters (B) ziggurats (C) cuneiform (D) city-States (E) a numeric system based on 10, 60, and 360 Answer: A Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+