World Metrology Day

About World Metrology Day

World Metrology Day is an annual celebration of the signature of the Metre Convention on 20 May 1875 by representatives of seventeen nations.

The Convention set the framework for global collaboration in the science of measurement and in its industrial, commercial and societal applications. The original aim of the Metre Convention - the world-wide uniformity of measurement - remains as important today as it was in 1875.

13Oct

National Fossil Day

• Science
• USA

A celebration organized by the National Park Service to promote public awareness and stewardship of fossils.

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19Oct

National Exascale Day

• Science
• USA

Find out the history and background to National Exascale Day

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23Oct

National Mole Day

• Science
• USA

October 23, denoted 10/23 in the US, is recognized by some as Mole Day. It is an informal holiday in honor of the unit among chemists.

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10Dec

Dewey Decimal System Day

• Science
• USA

File this holiday under library related observances. Top shelf just after ISBN Number Day.

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Colorado Public Lands Day

• Nature
• USA

Find out the dates, history and traditions of Colorado Public Lands Day

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National Armed Forces Day

• Military
• USA

Find out the dates, history and traditions of National Armed Forces Day

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National Learn to Swim Day

• Sports
• USA

Find out the dates, history and traditions of National Learn to Swim Day

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National Pizza Party Day

• Food
• USA

Find out the dates, history and traditions of National Pizza Party Day

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