When is Plimsoll Day?

It is observed on February 10 each year.

How do people observe Plimsoll Day?

Learn about the Plimsoll Line and the maritime safety reforms it inspired.

Annual observance

Plimsoll Day

February 10 Kindness / Community Updated 2026-04-22

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Overview

Plimsoll Day, observed annually on February 10th, commemorates the birth of Samuel Plimsoll (1824-1898), the British politician and social reformer known as "The Seamen's Friend." He is celebrated for his tireless campaign to improve safety at sea, which led to the Merchant Shipping Act of 1876 and the mandatory adoption of the Plimsoll Line – a mark on ship's hulls indicating the maximum safe loading limit.

Why it matters: Plimsoll Day, observed on February 10, honors Samuel Plimsoll's legacy as a champion for maritime safety and social reform. His efforts not only transformed shipping practices but also highlighted the importance of community advocacy in protecting the lives of seafarers.

Origin and story

Samuel Plimsoll was a Member of Parliament for Derby, England.

Before the Plimsoll Line, many ships were dangerously overloaded by unscrupulous owners, leading to frequent sinkings and significant loss of life, earning them the moniker "coffin ships."

Quick facts

DateFebruary 10
TypeKindness / Community
Great forCommunity groups, Friends, Coworkers

Also on this date

Ways to observe

Learn about the Plimsoll Line and why it exists.
Read how ships are safely loaded.
Explore modern shipping regulations.
See how safety standards save lives.
Learn how one person's advocacy led to reforms.
Reflect on consumer and worker protections.

Fun facts

The Plimsoll Line is still used worldwide to prevent ships from being dangerously overloaded.

Sources and attribution

The Plimsoll Line Explained (National Maritime Museum)

Plimsoll Line Overview (Encyclopaedia Britannica)

External links may lead to third-party websites.

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FAQ

When is Plimsoll Day?: It is observed on February 10 each year.
What is Plimsoll Day?: Plimsoll Day, observed annually on February 10, commemorates the birth of Samuel Plimsoll (1824-1898), the British politician and social reformer known as "The Seamen's Friend." He is celebrated for his tireless campaign to improve safety at sea, which led to the Merchant Shipping Act of 1876 and the mandatory adoption of the Plimsoll Line – a mark on ship's hulls indicating the maximum safe loading limit.
How do people observe Plimsoll Day?: Learn about the Plimsoll Line and the maritime safety reforms it inspired.

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