Fibonacci Day 2024 Prediction 2024. November 23 is fibonacci day, commemorating the italian mathematician leonardo of pisa and the pattern of numbers he popularized, the fibonacci sequence. But in any case, each november 23—that is, 11/23—we celebrate the infinite series known as the fibonacci sequence.
November 23 — or 11/23 — is the date of fibonacci day because the first series of numbers in the fibonacci sequence are 1, 1, 2, and 3. Fibonacci day is observed by math geeks around the world on november 23.