When is the Navy birthday celebrated?

The Navy birthday is celebrated on October 13, 1775, marking the establishment of the Continental Navy. This date is significant as it represents the inception of naval operations in the United States, transitioning to what we recognize today as the Navy. Celebrating this day serves as a reminder of the Navy's rich history and contributions to the nation's defense and engagement in maritime activities.

The other options do not pertain to significant dates in naval history. The 4th of July is celebrated as Independence Day in the United States, the 1st of January marks New Year's Day, and the 11th of November is recognized as Veterans Day, honoring veterans of the armed forces. Each of these dates has its own significance but does not relate specifically to the founding of the Navy.