In my opinion, the greatest accomplishment that the Roman civilization did was conquering land. The Roman's were very skilled when it comes to getting more land for their empire, and that's what they did. Because of how successful and powerful their military was, they conquered land that was already owned by other empire's. The Roman's conquered land from empire's like he Celtic tribes, Carthage, the Hellenistic Empires, and many more. They conquered a large amount of Europe, North Africa, and Western Asia. This makes it a very big accomplishment because no other Empire had the manpower that the Roman's had, and because of Rome's manpower, they were bound to conquer a lot of Europe and other land. Them expanding their empire allowed them to control most of Europe and other places.
The effects on their health was that widespread epidemics of viruses broke out like smallpox, tuberculosis, and typhus. This happened because an impact of the industrial revolution was rapid urbanization, which caused villages and towns to swell, overpopulating different places and making them hotbeds of disease and depredation. This was caused by the expanding industry swelling small villages
Hope this helps!! :))
Personally, I think it's because it was simple and free entertainment. Given that there wasn't a taboo around death and watching others die, and it actually being encouraged, like how it was in Anciient Rome, I'd say a lot of people would actually at least try out visiting a gladiatorial contest.
Taxations without representation
Unfair military placement
Unfair military violence
Unfair government systems
...
The Declaration of Independence lists 27 in the List of Grievances.
