http://americanhistory.si.edu/citizenship/
https://www.uscis.gov/citizenship
https://my.uscis.gov/prep/test/civics/view Good
I came to the United States for freedom and a chance to succeed.
https://www.uscis.gov/citizenship/learners/study-test/study-materials-civics-test/becoming-us-citizen-overview-naturalization-process