Originally Posted By: Faldage
I don't believe it was ever played in the World Stadium (wherever that might be or have been). In the early days of the sport there weren't really any stadiums. It's also not called the World Series because it was sponsored by the New York World newspaper, because it wasn't.


I do believe you may be right.
World Series History

So Americans really did call it the World Series because they thought the known World ended at Boston. Whaddya know! Don't remember where I heard the story about the World Stadium, guess it's spurious.