What is Icosahedral Geometry, You Ask?

It's the study of shapes with 20 sides, because who needs symmetry?

History of the Subject

The concept of the icosahedron dates back to the 19th century, when mathematicians were still figuring out what makes a good pun.

A Brief History of icosahedral Geometry

Here are some key milestones:

• The 1800s: Mathematicians first discover icosahedral shapes and promptly forget why they're interesting.
• The 1900s: Someone remembers that icosahedral shapes are actually pretty cool, and starts studying them seriously.
• The 2000s: Icosahedral shapes are used to create a new line of fashionable, icosahedral-shaped handbags.

Why Should I Care?

You should care because icosahedral shapes are:

• Really, really hard to draw.
• Kind of like a d20, but with more sides.
• Perfect for creating impossible shapes in 2D space.

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