not to long ago, WOW gave a run down of Yankee-- by geography--, ie, to a European, any American is a yankee, to a person in US, a yankee is a northerner, to a Northerner, a yankee is ...
with some fine distinctions about eating pie for breakfast (or was it donuts with maple syrup?) in any case, it became way too focused on food--

she left of sub-divisions, such as a Connecticut Yankee, and yankee tinker, and the Bronx bombers, who are also known as Yankee's. and we never got around to discussing Yankee-know-how--which i suspect Jackie and everyone else south of the mason Dixon line is pleased to posses, even as they disavow being yankees.

by the way, the mason-dixon line, is the southern border of the state of Pennsylvania settle a border dispute between it and Maryland. It was by a new survey, (done by a Mr. Mason and Mr. Dixon) and the border became the defacto division between north and south. It often associate with "slave holding states vs, non slave holdingstates" which conveniently forgets that NY was a slave state till 1840 or so.