What significant event occurred on 20 March 1922 in naval history?

The correct choice relates to a pivotal moment in naval aviation history when the USS Langley was launched. The USS Langley was the United States Navy's first aircraft carrier, marking a transformative development in naval warfare. Its launch on 20 March 1922 signified the Navy's strategic shift toward incorporating air power into its maritime operations.

Prior to this, the role of aircraft in naval engagements was limited, but with the introduction of an aircraft carrier, the Navy began to understand the value of aerial reconnaissance and striking capabilities from the sea. The USS Langley served as a platform for launching and recovering aircraft, thereby revolutionizing naval tactics and operations. This transition laid the groundwork for future advancements in naval aviation and the development of more sophisticated aircraft carriers.