National History Day (NHD)
Each year, National History Day® frames students’ research within a historical theme. The theme is chosen for broad application to world, national, or state history and its relevance to ancient history or to the more recent past.
The 2020-2021 theme is Communication in History: The Key to Understanding.
National History Day Student Resources - Official NHD webpage
Smithsonian Institution (Research includes the National Museum of African American History and Culture, National Museum of the American Indian, National Air and Space Museum, National Museum of American History, Smithsonian American Art Museum, the National Zoo and others)