Big Apple
"The Big Apple" was popularized as a name for New York City by John J. Fitz Gerald in a number of horse-racing articles for the "New York Morning Telegraph" in the 1920s. The earliest of these was a casual reference on 3rd May, 1921:
Big Apple Circus
The Big Apple Circus is a circus based in New York City. Opened in 1977, later becoming a nonprofit organization, it became a tourist attraction. The circus has been known for its community outreach programs, including Clown Care, as well as its humane treatment of animals. Big Apple Circus filed for Chapter 11 bankruptcy protection in November 2016 and exited bankruptcy in February 2017 after its assets were bought by Compass Partners. The Circus was renewed in October 2017 for its 40th anniversary season.