Oh and be sure not to use the assembly line, the lightbulb, the computer,
If you're intending to use these, was Faraday (electricity, for the uneducated) an american?
Or smallpox vaccine? Jenner wasn't american, was he?
the sewing machine, and the sticky note.
If we have to have invented it to use it then I'd suggest you give up microwaves & TV, both from UK. Canned food is French, so leave that alone too.
you can throw it at us when we do our flyovers in B-52's
That reminds me- radar. Invented in Britain in the 1930s. Marconi (radio)wasn't american either, IIRC.
I actually have a soft spot for yanks-I was going to get a pet american until I found out how much they eat.
Tell me- do you prefer cars from the US or Europe?