Don't forget the
human powered aircraft (and spacecraft) of ancient india.
This ancient indian civilization was destroyed in an ancient nuclear war. Robert Oppenheimer, one of the chief inventors of the modern nuclear bomb was aware of this, and when a student asked him if the bomb exploded at Alamogordo during the Manhattan Project the first one to be detonated, Oppenheimer responded,
"Well -- yes. In modern times," for he knew that there had been prior nuclear detonations in ancient times.
Similarly, Orville and Wilbur achieved the first human flight "in modern times," but it was not the first human flight ever, because ancient civilizations had flying technology.