The use of “Indians” to refer to Native Americans fits the theme.
Your article on Denim could go with an article explaining how jeans come from Genoa.
I do, although it’s virtually unknown here. And it does turn out to have a remote if somewhat conjectural connection with Australia.
See post #3 
But thanks, all suggestions welcome!
I don’t think I’m going to include commercial names; or those dreadful Outback steakhouses would be in too. BTW pizza is definitely Italian in origin, but as a popular fast food American of course; perhaps that’s what you mean?
Got the Spanish flu; amazingly to me that IS US in origin!
I haven’t really seen standard potatoes referred to as Irish potatoes; is that to distinguish them from say sweet potatoes? Or is it a variety of the standard potato?
Hamburgers are direct descendants from hamburger steak, although as you say the form of serving has changed mightily. I had ruled that out, but might re-consider if I run short of material.
Thanks!
Got that, but yes that’s a really interesting one!
It does, and at the moment I’m including that in the Indian Giver article. One aspect I could use help on though: I was under the impression that Columbus died still believing he’d reached India or at least the (east) Indies, but I read an aside in a book on language recently that he corrected his mistake after the first voyage, but it was too late and the original tag stuck. Does anyone have some more definitive source on that?
The first medico to describe it was German, and that’s the usual origin given. What’s your source for the “germaine” origin?
Hamburger steak (ground beef served in a patty) is from Hamburg, but of course the current fast food version of it is quite removed from that.