How did Romans use technology to improve hygiene?

From very early times the Romans, in imitation of the Etruscans, made underground channels to drain rainwater that might otherwise wash away precious topsoil, used ditches to drain swamps (such as the Pontine Marshes), and dug subterranean channels to drain marshy areas.

Explanation:

the civil war was a fulfillment and completion of the constitution, not a revolution against it. changes in culture and society surely affected political life. lincoln hoped to bring the north and south together after the war by healing the nationand making people lose their resentment.

hope this you out just took thus test a min go and mad a 100

there is no chart here so no one can answer this.