Step one in your research is to get to know your topic.
Do this by browsing some general information sources. You can start with a Google Search.
As you browse these sources, collect KEYWORDS related to the topic.
Words that answer the question WHO?
Words that answer the question WHAT?
Words that answer the question WHEN and WHERE?
Words that answer the question HOW?
Get as many keywords as you can. This will help as you move into the next steps.