How did Mesopotamian civilization have the greatest impact on the development of human civilization?

Mesopotamia's greatest influence on future civilizations was the spread of agriculture. The
region, located in the fertile area between the Tigris and Euphrates Rivers, was excellent for
farming. Once irrigation was developed, the long growing season here could be properly utilized.
Thanks to agriculture, populations grew due to the abundance of food. This led to a need for
more laws and governance in order to ensure that society did not break down. People could now
stay in one placeinstead of putting their energies into migration, they could develop
architecture. The people living in this region developed city walls and ceremonial ziggurats.
People could also save part of the harvest for future planting. These people did not know it at
the time, but they were selecting crops for future use based on genetics; this is something that
farmers do even today. Mesopotamian agriculture is the...