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TueJan 14

World Logic Day – January 14, 2025

World Logic Day is observed every year on January 14. The holiday was proclaimed on November 26, 2019, by the United Nations Educational, Scientific and Cultural Organization (UNESCO) to bring the intellectual history, practical implications, and conceptual significance of logic to the attention of science communities as well as the general public. The international day was conceptualized by the Logica Universalis Association (LUA) and celebrated for the first time on January 14, 2019, before the official proclamation.

World Logic Day timeline

12th Century
Logic Thrives

After the Dark Ages, logic begins to thrive.

January 2019
World Logic Day is Launched

World Logic Day is observed for the first time in 33 countries.

November 2019
World Logic Day is Proclaimed

UNESCO proclaims January 14 to be World Logic Day.

World Logic Day Spreads Globally

World Logic Day is celebrated with events in 35 countries.

World Logic Day FAQs

What are the types of logic?

There are four major types of logic: informal logic, formal logic, symbolic logic, and mathematical logic.

Who is the father of logic?

Aristotle is considered to be the father of western logic, as he was the first to develop a formal system for reasoning.

Where is the Logica Universalis Association located?

Interestingly, the headquarters of the Logica Universalis Association (LUA) is on the Moon, Boole Crater.

How to Observe World Logic Day

  1. Think logically

    Observe this holiday by applying logic to your daily activities. Use logic in making decisions and in forming correct conclusions.

  2. Learn more

    Logic is an interesting discipline, capable of improving the mind's capacity. There’s so much more to learn. Increase your knowledge base by learning about different kinds of logic and how they affect our world.

  3. Spread the word

    Tell others about World Logic Day so they can also participate. Share this article on social media and use the hashtag #worldlogicday.

Why We Love

  1. Aristotle

    Born in 384 B.C., Aristotle was one of the greatest philosophers that ever lived.

  2. Gottlob Frege

    Born on November 8, 1848, Frege was a German logician, philosopher, and mathematician; also known as the father of analytic philosophy.

  3. Bertrand Russell

    Born on May 18, 1872, Russell was a prominent British logician, philosopher, and social critic.

  4. Kurt Gödel

    Born on April 28, 1906, Gödel is considered to be one of the most prominent logicians in history, best known for his contributions to scientific and philosophical thinking in the 20th Century.

  5. Alfred Tarski

    Born on January 14, 1901, the Polish-American logician and mathematician is best remembered for his contributions to abstract algebra, geometry, measure theory, mathematical logic, set theory, and analytical philosophy.

Why World Logic Day is Important

  1. Logic helps in problem-solving

    Logic is vital in problem-solving. Applying logical thinking to difficult situations helps a person to arrive at sound solutions.

  2. Logic aids decision-making

    Logic also aids people in making decisions. When faced with tough choices, logic is an essential tool for choosing the right path.

  3. Logic builds persuasive skills

    Logic is useful in forming persuasive and precise arguments. This aids us in communicating our ideas effectively and in winning others to our points of view.

World Logic Day dates

2025January 14Tuesday
2026January 14Wednesday
2027January 14Thursday
2028January 14Friday
2029January 14Sunday

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