I've been getting many different answers on this question.

This is actually a great place to start!

Are you keeping track of the different answers? Can you put them into any particular categories, maybe based on geography (f.e. Europe, North Africa), time (classical and post-classical America), Almoravid Spain, late medieval Europe), or target of discrimination (gender, religion, ethnicity)?

How can you work towards finding a way to tailor such a broad question into one that can actually be answered sufficiently...without eating your life and/or destroying the rest of your GPA? Maybe you'll look for overall patterns (see earlier); maybe you're allowed to focus on a specific time and place, or a specific category of discrimination?

Hello there. Your question seems to be related to school work, so we just want to remind you, and any potential respondents, that our rules DO permit people to ask for help with their homework, so long as they are seeking clarification or resources, rather than the answer itself. This policy is further explained in this META Thread.

Additionally, while our users may be able to help you out here, we hope that you also will take the time to check out our six-part series, "Finding and Understanding Sources", which should hopefully prove to be helpful for you as you continue in your research.