Well, my signature line pretty well covers it.
I'm from Vancouver, British Columbia, one of the most Chinese cities in North America. On Canada's west coast, aboriginal people had contact with Chinese explorers hundreds of years before Europeans. The royal house of the Gitksan people, for instance, have a Sung dynasty Chinese coain as one of their heirlooms.
In the 19th century, European scholarship discovered a Chinese court record about a group of Buddhist missionaries who sailed to a land west of Tahan (the Kamchatka Peninsula) to the land of Fusang. Fusang, in the description sounds like a weird amalgam of every civilization in Pacific North America -- coffee beans growing on cedar trees, etc.
Essentially, I live in Fusang as much as I live in the Americas. Also, a favourite tradition in my GMing is fantasy versions/revisionist histories of the Americas. So far, I've run a quest for the Holy Grail set in a mythic version of the Americas in 1237, as well as a game set in 1990 and an alternate version of 2002 and a short Gamma World campaign based around the reservoir on the Peace River in Northern BC.
Anyway, my handle keeps the idea alive of me running a medieval Pacific Rim game and reminds me that I live as much in Fusang as I do Vancouver.