Even political scientists can celebrate: Fibonacci Day takes its date from the numerical pattern of the month and day—11/23—which directly follows the beginning of the Fibonacci sequence: 1, 1, 2, 3. The holiday emerged as a modern celebration embraced by math educators, students and enthusiasts who enjoy exploring the beauty and patterns behind numbers.
The sequence is named after Leonardo of Pisa, known as Fibonacci, a 13th-century mathematician whose book “Liber Abaci” introduced the sequence to the Western world. Over the centuries, interest in the sequence grew as mathematicians discovered its surprising links to natural structures, growth patterns and aesthetic proportions.
