Spirograph

Rarity: Common

The most frequent rarity: most Wikipedia articles become Commons.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Invention

Domain

Society

Knowledge cost

3

In collections

Nobody has pulled it yet.

What Wikipedia says

Spirograph is a geometric drawing device that produces mathematical roulette curves of the variety technically known as hypotrochoids and epitrochoids. The well-known toy version was developed by British engineer Denys Fisher and first sold in 1965.

Excerpt from the Wikipedia article “Spirograph”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: James Petts from London, England, CC BY-SA 2.0, via Wikimedia Commons.