"Big Apple" is a nickname for New York City. It was first popularized in the 1920s by John J. Fitz Gerald, a sports writer for the New York Morning Telegraph. Its popularity since the 1970s is due to a promotional campaign by the New York Convention and Visitors Bureau, known now as NYC & Company.
Broken Arrow, Edmond, Enid, Lawton, Midwest City, Moore, Norman, Stillwater and Tulsa are 9 of the 10 largest cities in which state of the USA?