Mathematicians and fans of unusual natural occurrences can celebrate 11/23 as Fibonacci Day, based on the first four numbers of his historic sequence. News you can trust since 1873.

Spiraling stained glass windowed ceiling of the Thanks Giving Chapel in Dallas recreates the Fibonacci sequence Credit: James Kirkikis / shutterstock It's a big day for number nerds. The date Nov ...

Mathematicians and fans of unusual natural occurrences can celebrate 11/23 as Fibonacci Day, based on the first four numbers of his historic sequence. All Sections. Dare to be Honest.

Mathematicians and fans of unusual natural occurrences can celebrate 11/23 as Fibonacci Day, based on the first four numbers of his historic sequence. News you can trust since 1873.

Mathematicians and fans of unusual natural occurrences can celebrate 11/23 as Fibonacci Day, based on the first four numbers of his historic sequence. All Sections. News you can trust since 1754.

Mathematicians and fans of unusual natural occurrences can celebrate 11/23 as Fibonacci Day, based on the first four numbers of his historic sequence. Leeds news you can trust since 1890.

Mathematicians and fans of unusual natural occurrences can celebrate 11/23 as Fibonacci Day, based on the first four numbers of his historic sequence. News you can trust since 1877.