What date marks the Navy's birthday?

The Navy's birthday is celebrated on October 13, 1775, which marks the establishment of the Continental Navy. This date is significant as it represents the formal creation of a naval force to enhance maritime capabilities during the American Revolutionary War. The Continental Congress authorized the procurement of two armed vessels to intercept British supply ships, thus laying the foundation for what would eventually become the United States Navy.

Other dates listed pertain to different significant events in U.S. military or naval history but do not signify the official birthday of the Navy. For instance, November 10, 1775, is known as the Marine Corps birthday, while August 4, 1775, is often related to the naval operations prior to formal establishment. Lastly, the date in 1947 refers to the reorganization of the U.S. military under the National Security Act but is not connected to the founding of the Navy. Understanding the origin of the Navy is crucial for recognizing its traditions and the evolution of naval operations in the United States.