The word “Dixieland” is a common term used to describe the southern states of America, but the etymology of the term is controversial.
The first school of thought is that, prior to the 1860s, the Citizen’s Bank of New Orleans issued 10-dollar notes with the word “dix” printed on the back. “Dix” is the French word for “10.”
The other belief is that the name is a reference to the Mason-Dixon Line, named after the land surveyors Charles Mason and Jeremiah Dixon. The Mason-Dixon Line was created in response to a border dispute between certain northern and southern states.
– Amanda Fox, The 100 Companies