What made a Roman uniquely Roman?

You should know that these are highly subjective questions and answers, but here's a good place to start: To break down your question, it could also be asked what made Romans different from the rest of the world at the time, and how did those differences contribute to their Republic and then Empire? So then you have to look at the major differences in the Roman culture. One defining differences was the creation of the aqua-ducts. Rome was the first city to employ a systematic approach to fresh water in terms of delivering it to the people instead of settling by a water source. Consequently, overall health was much better in Roman cities due to clean drinking water, which led to more frequent baths. So Roman were basically "cleaner" than other cultures at the time. In addition, Rome had a consistent language "Italian" as compared to broken languages and dialects of Gaul and other "bar-bar" speaking regions. So there was a connectedness about Romans, but it went further than language. Rome embodied an idea. An idea of civilization and laws in a lawless era. Rome in its beginning became the epicenter of all commerce, ideas, and scientific exploration in the Western world. Roman conquered subjects and territories were imilated into the culture and brought with them the most advanced methods of ship building , concrete manufacturing, and architecture. Imagine living in a place that was first in everything, the best in everything, with the greatest military might the world had known. And you were cleaner, healthier, and more educated than any of peoples. That combination, along with the most advandanced political system would certainly give you an aire of supremicy and formulate a genous opinion about oneself, despite a heterogenous population. As for the other questions, you got to do your own homework!