National Triangular Day

A group of diverse individuals, each wearing a unique triangular fashion accessory, in a colorful and vibrant city setting.. — National triangular day illustration

Hey there, triangle lovers! Get your protractors ready because it's time to celebrate National Triangular Day. If you thought triangles were just those geometric shapes you learned about in math class, think again. This special day is all about embracing the wonders of triangular greatness in various aspects of life. So, let's dive into the fascinating world of triangles and discover the hidden charms they hold.

When is Triangular Day?

It's national triangular day on the 13th September.

The Internet History of National Triangular Day

Triangular enthusiasts around the world unite, for National Triangular Day has arrived! This peculiar day first gained traction on the internet back in 2014 when a group of math enthusiasts decided to pay homage to their favorite shape. They saw the need to create awareness and appreciation for triangles – the unsung heroes of geometry.

Soon after, the hashtag #NationalTriangularDay started trending on social media, as people began sharing their love for triangles through hilarious memes, mind-bending puzzles, and even showcasing their triangular-shaped foods.

As the years went by, National Triangular Day evolved and expanded its horizons. It became a platform to celebrate all things triangular, from architectural marvels like the pyramids to the delightful taste of a perfectly cut slice of pizza. It also became an opportunity for food enthusiasts to show off their culinary creations, creating triangular-shaped treats that defy traditional culinary norms.

History behind the term 'Triangular'

Ancient Greece (6th century BC)

Geometry Emerges

In Ancient Greece, geometry began to emerge as a formal discipline thanks to mathematicians like Thales of Miletus and Pythagoras. These scholars laid the foundation for the study of shapes and properties, including the concept of triangles.

Egypt (300 BC)

Establishing Triangles

The Egyptian mathematician Euclid, known as the 'Father of Geometry,' compiled the influential book 'Elements' around 300 BC. In this book, Euclid defined the critical concepts of triangles, including their angles, sides, and properties, providing a formal framework for their study.

Renaissance (15th century)

Leonardo da Vinci's Triangle Studies

During the Renaissance, the Italian polymath Leonardo da Vinci delved into the study of triangles. He explored their relationships and proportions, particularly in relation to his renowned artworks and architectural designs. His insights furthered the understanding of this fundamental shape.

18th Century

Triangulation in Surveying

In the 18th century, the technique of triangulation became integral to surveying. It involved using triangles to precisely determine distances and map large areas of land. This method revolutionized cartography and significantly contributed to the accurate mapping of the world.

20th Century

The Triangular Prism

In the early 20th century, architects began incorporating the triangular prism as a structural element in modernist and contemporary buildings. This design approach allowed for innovative and visually striking architectural creations. The prominence of the triangular prism further solidified the significance of triangles in various fields.

Present Day

Triangular Symbolism

Today, triangles possess rich symbolism across different cultures and disciplines. In mathematics, triangles remain a fundamental shape extensively used for calculations and proofs. Moreover, triangles are often associated with stability, balance, and harmonious relationships, making them an enduring symbol in art, architecture, and even spiritual contexts.

Did you know?

Did you know that the Bermuda Triangle is not just famous for its mysterious disappearances? It's also home to some of the most stunning underwater triangles you'll ever see! The crystal-clear waters of the Bermuda Triangle reveal a hidden world of triangular-shaped corals, adding an extra touch of wonder to this already enigmatic place.