Did the civilization of Egypt or the civilizations of Mesopotamia have a greater impact on human development? Why, and how? world History

I would argue that the Mesopotamian civilization had a
greater impact on human development.  This is because it was both the first major
civilization and, later, the first civilization to invent
writing.

Agriculture was not invented in Mesopotamia, but
when it came to that area, the Mesopotamians were the first to create a really complex
civilization.  This civilization was known as the Sumerian civilization.  It had a great
deal of impact on places such as Egypt.  One of its major contributions was the creation
of cuneiform, the first system of writing ever known.

Since
writing is such an important part of human development, I would argue that the
civilization that invented writing had the greatest impact on that
development.