[For what I mean by "an entrepreneurial and prosperous city," see the bulleted points below.]
We're looking for a name for a research project. We're trying to be creative with the name and one of the ideas is to name it after an ancient city with the features I describe below. The city can be from any era and from any part of the world. It can be well-known or barely-known. It can even be mythical.
Features, roughly ordered by importance:
- Entrepreneurialism is in the air: pervasive optimism marked by people's bold and creative pursuits — commercial or otherwise
- Prosperous life for most of the citizens
- A thriving trading hub
- At the crossroads of different cultures
- Rich in arts and crafts
Obviously, the city or its name shouldn't evoke any negative image.
As you name a city (or cities), please provide the facts that show that it does fit the description (to the extent that it does — it doesn't have to be a perfect fit.)
Thanks in advance.
[Edited to make it a good subjective question. The original question did not ask to back up choices with facts. Also edited the title of the question, which originally was "Which were the most entrepreneurial cities in different eras?" And, some smaller edits were for clarity.]