What is Patent Number 139,121?

Check out newly published online teaching activities that focus on some of the most famous patent records and inventions in our holdings.

Bring the Constitution to Life

Get Ready for Constitution Day!

We have programs and resources to help you teach about the Constitution on Constitution Day or any day!

19th Amendment Centennial Commemoration

Commemorating the 19th Amendment

Join us for webinars, online student programs, and more to commemorate the centennial of the 19th Amendment.