Clogger ye be a troll.

First liquid rocket was American.

If ye're talking about people what invented paper planes I've got news for you. The Chinese invented paper. Cayley and a host of others were following on the work of Da Vinci. The hilarious point that sustained controlled flight are qualifications as if they were 'limitations' is in order to distinguish what the Wrights did, which was conceptual, analytical, practical, and reproducible, to what a lot of yahoos did, which was strap on some homemade bird or bat lookin' appendages, jump off a roof, and then say they invented flight (from their hospital beds).

I also think it doesn't really matter nationality of 'inventors' you seem to be more interested in baiting than intelligent discourse. So beit.