Read a transcript or view images of the Declaration of Independence, Constitution, and Bill of Rights through the National Archives' official website:
Another source for these documents and other core documents is the GPO's web portal, Core Documents of Our Democracy
Civil rights -- United States
Constitutional amendments -- United States
Constitutional history -- United States.
Constitutional law -- United States.
United States. Constitution
United States. Constitution. 1st-10th Amendments
United States. Declaration of Independence.