Did you know? The ancient Romans actually had a good, basic understanding of public health issues, and one big advantage of their use of aqueducts and drainage systems was that they avoided many of the diseases that arise from having stagnant water around. You would be far more likely to die of cholera, for instance, in Victorian London than in ancient Rome.
The Romans also valued cleanliness, their lavish public baths being only the most noticeable example. They also used soap, had public toilets with good drainage systems, and set up stepping stones for pedestrians, so they could cross muddy roads without getting their feet dirty.
Okay, I have five players for sure, and another one or two possibles, but there's always room for more. :)
*passes out togas*