Sanitation systems are really old, though. I was impressed with the sophistication of the one present in Glanum, a small (but wealthy) Roman provincial town ab

Sanitation systems are really old, though. I was impressed with the sophistication of the one present in Glanum, a small (but wealthy) Roman provincial town abandoned in the 2nd century. The sewer system runs underneath the main street: baths, villas, and the abatoir connect to it. To say nothing of the ones in major cities of the time.