What year marks the establishment of the Aeronautical Division in the US Army's Signal Corps?

The establishment of the Aeronautical Division in the US Army's Signal Corps occurred in 1907, making it a significant milestone in military aviation history. This division was created to oversee the development and operation of airships and heavier-than-air aircraft, reflecting a growing recognition of the importance of aviation in military strategy. The formation of this division marked the beginning of formalized military aviation efforts in the United States, paving the way for future advancements and the eventual creation of the US Air Force.

Selecting the year 1907 highlights the historical context wherein the U.S. military began to explore the potential of airpower, laying the groundwork for future innovations and the establishment of a more structured approach to military aviation. The other years, although significant in their own right regarding various historical events, do not correspond to the establishment of the Aeronautical Division.