Plimsoll Day
Plimsoll Day is held on February 10. This event in the first decade of the month February is annual. 
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Samuel Plimsoll, (born February 10, 1824, Bristol, Gloucestershire, England—died June 3, 1898, Folkestone, Kent), British politician and social reformer who dedicated himself to achieving greater safety for seamen and whose name has been given to a line on the side of a ship indicating the maximum depth to which that ship may be legally loaded.
Today, he is mostly remembered for inventing 'the Plimsoll Line', which is a set of measurements and symbols on the side of ships indicating how much cargo can be safely carried. It was his legislative work in this area that named him the nickname, 'the Sailors' Friend'.
The Plimsoll line is a reference mark located on a ship's hull that indicates the maximum depth to which the vessel may be safely immersed when loaded with cargo. This depth varies with a ship's dimensions, type of cargo, time of year, and the water densities encountered in port and at sea.
Similar holidays and events, festivals and interesting facts
Read In The Bathtub Day on February 9
Toothache Day on February 9 (It is so important that we learn how to take care of our teeth and not only get rid of nasty aches but also stop them coming back or turning into something more serious);
Umbrella Day on February 10
Name Your Car Day on February 10
White Shirt Day on February 11 (is marks the end of a union strike by employees of General Motors in 1937);
Don't Cry Over Spilled Milk Day on February 11
Get Out Your Guitar Day on February 11 (Ever since the first version of a guitar was created, man has desired to escape the mundane and take some time to dream);
Clean Out Your Computer Day on February 11
Satisfied Staying Single Day on February 11
Make a Friend Day on February 11