north
I come from the north, on a latitude similar to Moscow or the Hudson Bay, and that has good and bad things associated with it, but if you want to know where the north begins, I guess it starts at a line somewhere close to where, 10,000 years ago, the ground was covered by a mile of ice.
If the ground your home is built on used to be below an ice sheet, then you’re from the north.
As a person, that’s important to me, but as a writer, not so much.