Fibonacci Day 1950

Thursday, 23 November 1950

Fibonacci Day uses the month and day notation 11/23 to echo the opening numbers of the Fibonacci sequence: 1, 1, 2, 3.

Frequently asked questions

When is Fibonacci Day 1950?
Fibonacci Day 1950 is on Thursday, 23 November 1950.
What day of the week is Fibonacci Day 1950?
It falls on Thursday.
How is Fibonacci Day calculated?
This event is observed every year on 23 November.