The migration in the 1980's changed by how it increased so dramatically.
Ziggurats, are the temples of the Sumerian States.
Answer:
the Tigris and Euphrates rivers
Explanation:
Mesopotamia was a very fertile and good area located around and between the two rivers Tigris and Euphrates. The first civilization rose here and many developments and settlements were made. Many technological breakthroughs were made in this area and small towns developed. New agriculture and watering methods were implemented which led to population increase.
