<h3>Communication in History: The Key to Understanding.</h3>
Explanation:
The theme for the 2021 National History Day is "Communication in History: The Key to Understanding". Every year a new theme is chosen by the NHD committee for researchers, teachers, historians and students to engage in historical research.
The 2021 NHD theme provides a <u>platform for students and researchers to question the importance of exchange of information and interaction among people</u>. It also gives them an <u>opportunity to understand and explore the various ways of communication and how communication have changed the history if mankind.</u>
The <u>transition and development in modes of communication, the introduction of newspapers, news channels, telephones, etc.,would all be emphasized to be studied under this theme.</u>
