What is National Submarine Day?

The United States Navy's acquisition of its first modern commissioned submarine on April 11th honors the day the US Navy acquired its first modern commissioned submarine on April 11th. The Holland VI became the Navy's first modern submarine on April 11, 1900, on April 11, 1900.

At Navy Lt. Lewis Nixon's Crescent Shipyard in Elizabeth, New Jersey, he launched the Holland VI, which was designed by Irish-American entrepreneur John Phillip Holland in 1896. He launched the Holland VI on May 17, 1897. On April 11, 1900, the United States Navy purchased the Holland VI. The Navy renamed it the USS Holland (SS-1) as the military's first commissioned submarine (SS-1).

In the United States, Submarine history has long existed. The Turtle was built by David Bushnell, America's first submarine during the Revolutionary War period. The submersible made several attempts to sink British ships but never succeeded. The submersible made several attempts to sink British ships but never succeeded. The Turtle was not the Navy's first submarine at the time, so it was not the Navy's first submarine at the time. The USS Alligator, the first known US Navy submarine, was the first known US Navy submarine. It's also the fourth United States Navy ship of that name. During the American Civil War, the Alligator was active.

On March 17th, Submarine Day is commemorated in Elsewhere in the world.

How to celebrate #nationalsubmarineday.