In what year did the Wright Brothers achieve their first powered flight?

The Wright Brothers achieved their first powered flight in 1903, making this the correct choice. On December 17, 1903, at Kitty Hawk, North Carolina, Orville and Wilbur Wright successfully piloted their aircraft, the Wright Flyer, for the first time. This momentous event marked the beginning of the era of controlled, sustained flight powered by an engine, a significant milestone in aviation history. The flight lasted 12 seconds and covered a distance of 120 feet, demonstrating that human flight was indeed possible with a heavier-than-air machine.

Years like 1901, 1905, and 1907 are significant in the context of aviation development, but they do not mark the Wright Brothers' first powered flight. In 1901, the brothers were still experimenting with gliders, and it wasn't until 1905 that they made further advancements with their aircraft, ultimately culminating in more sustained and controlled flight. Although 1907 falls within the scope of their ongoing research and advancements, it is well after the key milestone achieved in 1903.