Barrages and Dams were built to manage the Euphrates river. I hope this answer helps.
Answer:
Shoguns
Explanation:
At first they were under the rule of the Emperor, but then Japan morphed into a feudalistic society.
Hahahauaaiia c is correct
Athenian democracy developed around the 6th century BC in the Greek city-state (known as a polis)
Hope this helps