From the National Archives’ Presidential Timeline

“The Twenty-Sixth Amendment” is one of the interactive Richard Nixon Exhibits: http://www.presidentialtimeline.org/#/exhibit/37/03

It is accompanied by educational activities in which students examine primary source materials in a quest to convince new young voters to go to the polls. The activities are designed to convey an in depth understanding of historical events related to the president.

Go to the activities: President Nixon and the 26th Amendment

Source

The National Archives provides historical content and primary sources, and the University of Texas at Austin provides technical skills to create and maintain the website.