Which phrase best completes the diagram?
Sumerian
Innovations
A writing system
?
The plow
A. Sailing ships
B. Irrigation systems
C. Horseback riding
D. Wheeled vehicles
i'm on the same question but on my diagram I have wheeled vehicles and the plow and I needed the the answer : a writing system , which you had on your diagram and I have the answer your looking for on my diagram.
