Celebrate numbers, patterns, and trippy visuals on Fibonacci Day | Culture - Mashable

Sit back and stare at the swirling imagery as you ponder the meaning of life by Adam Rosenberg, Senior Games Reporter for Mashable.

Spiraling stained glass windowed ceiling of the Thanks Giving Chapel in Dallas recreates the Fibonacci sequence.
Photo: James Kirkikis / shutterstock

It's a big day for number nerds.

The date Nov. 23 – really 11/23, since formatting makes a difference here – marks Fibonacci Day, a time when people on the internet take a moment to remember high school math class.

The day owes its name to a 13th century Italian mathematician who is popularly known as Fibonacci (though that's not his name).

You probably know him better as a math lesson. The Fibonacci sequence is a series of numbers in which each one is the sum of the two numbers that came before it. So Nov. 23, or 1-1-2-3, is a simple example that the calendar circles back to every year: 1+1=2, 1+2=3. (The next number in the sequence is 5. You get the picture.)
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23rd November was... Fibonacci Day by Days Of The Year

Source: Mashable