Then Again
Then Again: Web Chron: Sumer, 3500 1900 Bc
Survey of ancient Sumer that describes Mesopotamian civilization's way of life, cities, religion, technology, and so on.
National Earth Science Teachers Association
Windows to the Universe: Sumerian Mythology
This page from Windows to the Universe allows one to learn about the Mesopotamia region of the world. Find out about the different myths that the Sumerians believed in.