Big Apple
"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 in part to a promotional campaign by the New York tourist authorities.
Caput Mundi
New York City, the most populous city in the United States, is sometimes described by the Latin phrase ""Novum Caput Mundi"" ("New Capital of the World"); or more commonly by the English phrase, "Capital of the World". A leading global city, New York exerts a significant impact upon commerce, finance, media, art, fashion, research, technology, education, and entertainment, its fast pace defining the term "New York minute". Home to the headquarters of the United Nations, New York is an important center for international diplomacy and has been described as the cultural and financial capital of the world, despite not being the modern capital of the United States or even of New York State. As many as 800 languages are spoken in New York City, making it the most linguistically diverse city in the world.