Constitution Day and Citizenship Day, as defined by the Law Library of Congress, is observed each year on September 17 to commemorate the signing of the Constitution on September 17, 1787, and “recognize all who, by coming of age or by naturalization, have become citizens." For legislation, Presidential Proclamations, and Executive Orders pertaining to this commemoration, visit the U.S. Constitution: Constitution Day and Citizenship Day section of the Law Library of Congress' Guide to Law Online: U.S. Federal page.
Online Resources about the Constitution
The Constitution of the United States: A Transcription from the National Archives
The Constitution Annotated from the Library of Congress. This site premiered on September 16, 2019 and has additional features and upgrades planned.
U.S. Constitution presented with explanatory text from the Legal Information Institute of Cornell Law School
Constitution of the United States: Primary Documents in American History from the Library of Congress
The US Constitution video and transcript from the Khan Academy
Online Resources about U.S. Citizenship
U.S. Citizenship and Immigration Services (USCIS) homepage
Citizenship Resource Center provides study materials and resources
PREPARING FOR THE OATH - Preparing for the Oath is an easy-to-use study guide for the civics portion of the 2008 U.S. Naturalization Test. Here, you can learn about U.S. history and government and practice for the test.