Your question is very general, so I'll answer it as best I can. Yes, most historical societies that had an established hierarchy had a "pop culture" for lack of a better term. Nobility and even the monarchy would be the ones that started fashion trends, often influencing other nearby cultures (or even far-off ones by ways of travel and trade, a la China's silk becoming popular in Europe). People lower on the ladder in society would attempt to emulate the monarchy/nobility in an attempt to seem more sophisticated. This is actually how the modern-day suit became popular - a clothing item worn by the elite was emulated by everyone else, and now it is a clothing item nearly essential for someone wanting to look professional.

Sorry, we don't allow throughout history questions. These tend to produce threads which are collections of trivia, not the in-depth discussions about a particular topic we're looking for. If you have a specific question about a historical event or period or person, please feel free to re-compose your question and submit it again. Alternatively, you may PM /u/caffarelli to have your question considered for an upcoming Tuesday Trivia thread.