Ms. Browner does an outstanding job of introducing this project. I won't repeat what she said in class here, but I will add that it is important to stay tuned to your progression through the research process. Change your resources and search terms as you learn about your subject. Using the same search terms over and over will only generate the same results. Then you will end up with too much superficial information and not enough detail.
Also, read for information rather than search for it. Most sources will include much of what you need to know. Don't waste time looking for "major contribution" simply because that is what it says on your assignment. Read resources until you discover what those major contributions are, and then list them. Then search for those instead of continuing to search for your subject by name.