By something called the hypocaust worked by slaves
Dug a hole and filled it with cement. Then when it dried, they filled it with water.
The ancient Roman baths were green because the pianting of the baths tubs were green so there for the reflection of the water would make it look as if the h2o was green but yet is was not.
It warmed homes and baths.
kissing
The ancient Romans proved them as master of engineering and building. They also marked them as a superpower and ruthless empire
No effect. After the fall of the Roman Empire the Roman baths fell into disuse and there were no baths in Europe for many centuries. Modern baths are based on modern plumbing. Modern public baths do not have a cold-plunge baths, a sauna, a gym and massage like the Roman baths.
The ancient Romans did not make wicks for candles because they never had them. They used oil lamps.
The Romans made lots of contributions to the UK, like giving medicare, education laws roads sewage baths without the Romans the UK wouldn't have all this stuff we have nowadays!
They didn't. Halloween is an ancient Celtic tradition.
Roman baths did not, as the question implies make things "worse". Ancient Roman baths were built first in Rome and later became a part of all large Roman cities and in cities Rome conquered that were deemed large enough to have them. Wealthy Romans often had their own private baths. Many Roman cities and conquered ones had indoor plumbing fed by waters carried in from Roman built aqueducts. Public baths were in a sense part of Roman genius and part of Roman culture. Some of the baths were fed by natural spring waters. The baths in some places were so sophisticated that they were heated. The baths were ideal for Roman citizens who could not afford private ones. The baths served not only as a place to keep clean, but were also recreational and a place for people to gather and meet.
Same reason as Mongols, Chinese, and Romans were fighting: to make their territory bigger.
Yes, makeup was a fairly common thing by the time of Ancient Rome.