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2021 National History Day

Theme: Communication in History: The Key To Understanding

Each year NHD frames students' research within a historical theme. The theme is chosen for its broad application to world, national or state history and its relevance to ancient history or to the more recent past. The theme for 2021 is Communication in History: The Key To Understanding. The theme provides a focused way to increase  students' historical understanding and an opportunity to develop perspective and understanding rather than merely being able to cite facts and figures.​


Each year NHD establishes an annual theme. Students may begin to work on projects as soon as the NHD finals competition ends in mid-June. The theme is purposely broad so that nearly any topic will work. To learn more about this year's theme, go to Theme Sheet.

​To learn about this years NHD theme, please click on the links below to download the helpful resources:

Contest registration is $60 per student

Online Registration​
Contest Dates​

How Many Entries Can Each School Send to NHD-OC? New for 2021​

Schools may enter two (2) entries per category, per division.

Thank you to our NHD-OC Sponsors


​To become a Sponsor - please click here​.
​​To please your Ad - please click here​.


For more information about the NHD-OC contest, please contact us at​