Annual observance

Submarine Day

March 17 Cultural / community observance Updated 2025-12-17

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Overview

Submarine Day, observed annually on March 17th, commemorates a pivotal moment in naval history: the purchase of the USS Holland (SS-1) by the U.S. Navy in 1900. This event marked the official beginning of the U.S. Navy's submarine force, ushering in a new era of underwater warfare and reconnaissance that profoundly impacted maritime strategy and technology worldwide.

Observed each year on March 17, Submarine Day invites people to pause, share the story, and bring a little themed joy to their day.

Why it matters: Submarine Day, observed on March 17, honors the purchase of the USS Holland (SS-1) in 1900, which marked the inception of the U.S. Navy's submarine force. This day highlights the transformative impact of submarines on naval warfare and maritime strategy, shaping the future of military operations.

Origin and story

The USS Holland (SS-1), purchased on this day in 1900, was the first submarine officially commissioned by the U.S. Navy.

It was designed by Irish-American engineer John Philip Holland, who had spent years developing his practical submarine designs.

Quick facts

  • DateMarch 17
  • TypeCultural / community observance
  • Great forFriends, Families, Classrooms, Teams

Also on this date

Ways to Observe Submarine Day

Submarine Day commemorates the commissioning of the first modern commissioned submarine by the U.S. Navy in 1900.

Learn About Submarines

Explore Naval Technology

  • Learn how submarines operate
  • Explore their role in exploration and defense
  • Visit naval museums (if available)

Appreciate Engineering

  • Learn about pressure, buoyancy, and propulsion
  • Compare early submarines to modern vessels

Did You Know?

The U.S. Navy's first commissioned submarine was the USS Holland (SS-1).

External links may lead to third-party websites.

Fun facts

  • The USS Holland (SS-1), purchased on this day in 1900, was the first submarine officially commissioned by the U.S. Navy.
  • It was designed by Irish-American engineer John Philip Holland, who had spent years developing his practical submarine designs.
  • Before the Holland, earlier experimental submarines existed, but its successful trials and practical design led to its adoption and the subsequent formation of the U.S. Navy's submarine fleet.
  • The USS Holland had a maximum speed of about 5.5 knots and could operate at depths of up to 75 feet.
  • The introduction of submarines changed naval warfare, providing nations with new strategic options during conflicts.

Sources and attribution

Source not provided.


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FAQ

When is Submarine Day?
It is observed on March 17 each year.
What is Submarine Day?
Submarine Day, observed annually on March 17th, commemorates a pivotal moment in naval history: the purchase of the USS Holland (SS-1) by the U.S. Navy in 1900. This event marked the official beginning of the U.S. Navy's submarine force, ushering in a new era of underwater warfare and reconnaissance that profoundly impacted maritime strategy and technology worldwide.
How do people celebrate Submarine Day?
Post a story with #submarine-day and invite others to try a tiny activity.

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