The word "periodical" refers to a publication that continues to be published, usually on a regular basis, in multiple issues under the same title, such as a magazine, journal, or newspaper.
Information from magazines, journals, and newspapers can be useful for researching events and topics. See The Information Cycle1 for a perspective on the time factor.
The Library subscribes to some print periodicals for the use of the college community. However, if you are doing research, it is probably much more efficient and effective to search for articles on your subject in the databases provided by the library--via on-campus computers, and off-campus computers via Passwords. See A to Z Online Resources Guide.
1 Ishii, Akiko. "Information Cycle Timeline" [animation]. Owens Library. Northwest Missouri State University. July 2002. Web. 20 Nov. 2015.
The Library maintains a collection of archival journals relating to the state of North Carolina, including the following titles. Click on the title to view the holdings record.