It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
The National Archives and the Library of Congress have extensive collections on documents from the founding era. A good number of the principal documents have been digitized. Visit their sites to get a feel for the original flavor of this period. A few sources are listed below:
The Constitution Annotated provides a comprehensive overview of how the Constitution has been interpreted over time and is now available on this new site with upgraded search capabilities. The online Constitution Annotated includes discussions of the Supreme Court’s latest opinions.
Contains 277 documents relating to the work of Congress and the drafting and ratification of the Constitution. Items include extracts of the journals of Congress, resolutions, proclamations, committee reports, treaties, and early printed versions of the United States Constitution and the Declaration of Independence.
The Federalist Papers were a series of eighty-five essays urging the citizens of New York to ratify the new United States Constitution. Written by Alexander Hamilton, James Madison, and John Jay, the essays originally appeared anonymously in New York newspapers in 1787 and 1788 under the pen name "Publius." The Federalist Papers are considered one of the most important sources for interpreting and understanding the original intent of the Constitution.
The Documentary Record of the Constitution traces and provides access to important documents that may have inspired the founding fathers. Begins with the Magna Carta and Mayflower Compact and runs through the state ratification conventions. Hosted by Yale Law School.