Calendar

This is calendar of maths anniversaries, where we bring you the maths stories behind dates in the Gregorian calendar, from birthdays to discoveries, and even some of the eccentric mathematical holidays people have come up with over the years.

Fibonacci Day

23 November 2024

One of the biggest mathematical holidays of the year, Fibonacci Day is celebrated on 23 November. In the date format used by the United States among others, the 23th of November is written as 11/23, a Fibonacci sequence.

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