Answer: Aqueducts
Explanation: They were first developed around 312 B.C., these engineering marvels used gravity to transport water along with the stone, lead and concrete pipelines and into city centers. Aqueducts liberated Roman cities from reliance on nearby water supplies and proved priceless in promoting public health and sanitation.
Answer:
yes i do think they should do that, instead of wasting it on wars, we should use it to focus on finding cures for diseases, like cancer, just imagine what we could do with all of that money if we just dont use it for war
Byzantine empire i'm pretty sure