World Logic Day

World Logic Day is an international observance dedicated to the significance of logic. Celebrated every year on January 14, this day highlights the essential role logic plays in our lives and in society. Logic is a uniquely human trait that sets us apart from other species. Through reasoning, we learn about the world and continue to develop as individuals.

History

World Logic Day was established by UNESCO on November 26, 2019, and has been celebrated on January 14 ever since. The aim of this day is to bring greater attention—both in academia and in the wider community—to the importance of logic.

Throughout history, logic has been a central concept in philosophy. Logic is the science of the principles of correct reasoning. Every day, we process information and, by forming logical chains, make decisions or shape our perspectives.

Logic guides much of our daily life, often without us realizing it. For example, if an apple is a fruit and it is soft, we know we can cut it into pieces with a kitchen knife. This is a simple illustration of logical thinking in action.

Interesting Facts

• Logic is more than simple reasoning—it helps us adapt to new situations and solve complex problems.
• The formal study of logic began in ancient Greece in the 4th century BCE with Aristotle.
• Today, logic is essential not just in philosophy, but also as the foundation of mathematics and computer science.

How to Take Part

You can celebrate World Logic Day on your own or with others. Try IQ tests, solve logic puzzles, or explore the role of logic in philosophy, mathematics, and science. You might even create your own logic challenges for friends and family.

Share information about World Logic Day on social media. Start conversations about how often you use logic in your daily life and how you keep your reasoning skills sharp.

When is World Logic Day in 2026?

World Logic Day is observed on January 14 each year.

Observations