I have a project final in a class where I have to make a 10 minute video presentation about a topic from Ancient History, and relate it to an aspect of the modern world. For example, Relating the Cave allegory to Highschool, or Aristophanes to modern comedy. I'm not sure if this would be the subreddit to help but all suggestions are welcome. The time period/ locations these subjects have to come from is from the beginning of man to Mesopotamia, Egypt, Greece, Persia, and Macedon.
How about stratification of class? Mesopotamia was a quite stratified society. They also had payday loans, which are still around.