What was the first civilization in mesopotamia

The Sumerians were the first Mesopotamian civilization considered the first and oldest civilization in the world.  

The Sumerians settled in the vicinity of the Tigris and Euphrates rivers, near the mouth of the Persian Gulf. They spoke their own language and had their own religion, which was central to their social ordering.

In addition, the Sumerians left the legacy of cuneiform writing, it was considered the first record of the writing of humankind.

the answer to number 5 is fort sumter

the quote by walter cronkite contributes to the central idea of the text by supporting the central idea. cronkite argues that what is deemed “right” for and in america may not be good for other countries. this supports the central idea of the text, that the vietnam war was unpopular in america for multiple reasons- including cronkite’s.