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On September 17, 1787, the final draft of the United States Constitution was signed by 39 delegates. The document was then sent to the states for ratification, and went into effect on June 21, 1788 when New Hampshire became the ninth state to ratify the Constitution.
Constitution Day and Citizenship Day are observed each year on September 17 to commemorate the signing of the Constitution and “recognize all who, by coming of age or by naturalization, have become citizens.”
This guide is designed to help you find information about the U.S. Constitution, Constitution Day, our branches of government, legal research, and the State of Illinois. In addition to the topic headings, look for additional information under the above tabs marked with an arrow - Constitution Day and Constitution.
Oakton Community College Library is one of the nation’s nearly 1,250 designated libraries in the Federal Depository Library Program (FDLP) with government information to help you answer these questions.
In addition to government documents, the Oakton Library has books, encyclopedias and background information, and databases to help you with your research. If you need help navigating this Research Guide, please ask a Reference Librarian for assistance.
For additional information about government documents in the Library's collection, please see our Government Information Research Guide or a Reference Librarian.
Questions about your research?
If you are on the Oakton Des Plaines or RHC Skokie Campus, you can visit the Oakton Library Reference Desk any time between 8:00 am and 9:00 pm Monday - Thursday, 8:00 am and 6:00 pm on Fridays, or 9:00 am and 3:00 pm on Saturdays.
Or, schedule a free Research Consultation on campus with a librarian by calling the Oakton Library Reference Desk at 847-635-1644 at the Des Plaines Campus or 847-635-1474 at the RHC Skokie Campus. Have your research assignment handy so you can describe what information you need when you set up the consultation.
Not on campus? Please call the Oakton Library Reference Desk at 847-635-1644 at the Des Plaines Campus or 847-635-1474 at the RHC Skokie Campus.
No time for a phone call? Oakton students and personnel can use Ask Library, Oakton's Online Library Reference. Requests will be answered within two days, excluding holidays and days when classes are not in session.
If you need help requesting books in I-Share or have questions about interlibrary loan, please call (847) 635-1642.