1903 is a marquee year for aviation, mainly because “first flight” sounds much snappier than “first controlled, sustained flight of a powered, heavier-than-air aircraft” – and balloon pioneers are too far back in history to fit in with the age of innovation. All the same, the Wright brothers retain their fascination, their first flight at Kitty Hawk leading inexorably to the air battles of the First World War, just over a decade later.
Here is a BBC documentary on the first days of flight
And here is an American documentary on the first powered flight