The best place to begin your History Day project is at the websites dedicated to this competition. You’ll find guidelines for your project and links to resources that will help extensively with your research.
National History Day in Missouri (NHDMO)
The official website of the Missouri state affiliate of the National History Day program.
National History Day (NHD)
The official website for National History Day. Review the contest rules and this year’s theme. Choose a topic and conduct research using primary, secondary and tertiary sources. Learn to cite sources and create an annotated bibliography. The resources at this website are rich and numerous.