What important developments in sumer and mesopotamia laid the foundation for later civilizations?

The many inventions of Sumer and Mesopotamia laid the foundation for later civilizations:

Explanation:

1.) Mass-Produced Pottery     6.) Textile Mills

2.) Writing                                7.) Mass Produced Bricks

3.) Hydraulic Engineering       8.) Metallurgy

4.) The Chariot                         9.) Mathematics

5.) The Plow

the answer is

adopted the practice of proskynesis, a persian court custom that involved bowing down and kissing the hand of others, depending on their rank.