National History Day WebsiteNational History Day is a year-long academic program focused on historical research, interpretation and creative expression for 6th- to 12th-grade students. By participating in NHD, students become writers, filmmakers, web designers, playwrights and artists as they create unique contemporary expressions of history. The experience culminates in a series of contests at the local and affiliate levels and an annual national competition in the nation's capital in June.