How did prejudice create racial discrimination in employment?

How did prejudice create racial discrimination in employment?
just need some sample paragraphs, I am not going to use it
need an introduction paragraph and conclusion.
Intro:(Please use the concept prejudice)
The brief explanation of the historical time period and geographical location of the issue.Then give your thesis statement (what you think should or should not happen)- should be the last sentence of introduction.
THESIS STATEMENT (Your argument)
Write a sentence indicating what you think should or should not happen (or have happened) regarding this issue.
conclusion: Sum up what you presented in the introduction and body of paper without repeating word for word. What has been the value (or lack of value) of the issue?Make sure you have not veered off your original topic.