On what date did the Wright brothers successfully fly their Flyer?

The Wright brothers successfully flew their Flyer on December 17, 1903. This date is significant as it marks the first time in history that a heavier-than-air powered aircraft achieved sustained, controlled flight with a qualified pilot aboard. The Flyer, piloted by Orville Wright for the first flight, covered a distance of 120 feet in 12 seconds. This event is often celebrated as the birth of modern aviation, highlighting the innovative engineering and determination of the Wright brothers in their pursuit of flight.

The other dates listed either do not correspond to the inaugural flight or are significant for other reasons related to the Wright brothers' continued development of their aircraft.