The first plane to fly from North America to Europe was a US plane in 1919
Yes they did, by puddle jumping across the Atlantic using a string of ships as navigational aids and took eleven days.
Just over two weeks after them, two British lads managed the feat by going non stop. Which was the greater effort? An effort by a group with the where with all of an entire nation behind them via the military, or two individuals employed by an aircraft manufacturer?
Stop the willy waving, all contributed in their own way.
Lets say we change the subject as to who was first in space, or the first supersonic transport, or who was first across the Pacific.