Why was November 23 chosen to observe Fibonacci Day?

Why was

What is Fibonacci?

[{"selector":"#anim-1a64aa02-82bf-44a7-845c-348ebf2fb350","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-0e24cb75-9abf-4a05-8eb5-6b4573765874","keyframes":{"transform":["translate3d(0px, -1130.05068%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-556e3df4-7e59-4728-a070-2385d25cab7e","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-1b85d3c7-8f19-4889-b867-cd210a5eafd9","keyframes":{"transform":["translate3d(0px, -6327.7698%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-cb4d65f7-2769-49eb-9901-26157abe0795","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e9be9ab2-d568-44c5-8d7d-09d5df70672d","keyframes":{"transform":["translate3d(0px, 159.31141%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6eaabfcb-3975-4021-8f77-f182728ea783 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-29.79027636336508%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Scribbled Underline

Who was Fibonacci?

[{"selector":"#anim-65d44f4b-1fe0-4bde-92b7-6992f8fd24af","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-eef888d3-8159-4928-ae98-fc41368cd1bd","keyframes":{"transform":["translate3d(-133.73983%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-dbe34c74-55e5-4e27-8791-757302e66cdc","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-57672f38-37e3-4cc9-a9ff-0e96ba02f83d","keyframes":{"transform":["translate3d(115.18987%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-a1b87195-8e91-484d-8169-7a4836bbc8a6","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-55020c16-29cc-4bc1-915c-b5353db2db5d","keyframes":{"transform":["translate3d(-200%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Scribbled Underline

What is Fibonacci Sequence?

[{"selector":"#anim-9b3ff3f1-2b06-440c-bdc4-c00286402388","keyframes":{"transform":["scale(1)","scale(1.5)","scale(0.95)","scale(1)"],"offset":[0,0.33,0.66,1]},"delay":0,"duration":1450,"easing":"ease-in-out","fill":"both","iterations":1}] [{"selector":"#anim-c09a25ee-529c-4c8e-8a81-3002107ad8db","keyframes":{"transform":["scale(1)","scale(1.5)","scale(0.95)","scale(1)"],"offset":[0,0.33,0.66,1]},"delay":0,"duration":1450,"easing":"ease-in-out","fill":"both","iterations":1}] [{"selector":"#anim-cfc5a15e-4e3a-4744-ad5c-a0fe6fc0c72b","keyframes":{"transform":["scale(1)","scale(1.5)","scale(0.95)","scale(1)"],"offset":[0,0.33,0.66,1]},"delay":0,"duration":1450,"easing":"ease-in-out","fill":"both","iterations":1}] [{"selector":"#anim-ef6ee350-8576-4edb-9fc8-0b94ce3a248a [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-18.680414169737666%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Scribbled Underline

Why is it Nature’s Secret Code?

[{"selector":"#anim-7663f379-1a3b-4f8b-8aef-ad80dc576f27","keyframes":[{"offset":0,"transform":"translate3d(0, -622.77794%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.29,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.45,"transform":"translate3d(0, -175.12515672799998%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.61,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.71,"transform":"translate3d(0, -59.537571064%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.8,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.85,"transform":"translate3d(0, -22.357728046%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.92,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.96,"transform":"translate3d(0, -9.715335863999998%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":1,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"}],"delay":0,"duration":600,"fill":"both"}] [{"selector":"#anim-faaa8e6f-af5e-45bd-908b-f13fe0115112","keyframes":[{"offset":0,"transform":"translate3d(0, -582.11643%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.29,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.45,"transform":"translate3d(0, -163.691140116%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.61,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.71,"transform":"translate3d(0, -55.650330708000006%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.8,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.85,"transform":"translate3d(0, -20.897979837%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.92,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.96,"transform":"translate3d(0, -9.081016308%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":1,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"}],"delay":0,"duration":600,"fill":"both"}] [{"selector":"#anim-70f74b39-d5af-408d-b8c5-8475fad7df62","keyframes":[{"offset":0,"transform":"translate3d(0, -6327.7698%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.29,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.45,"transform":"translate3d(0, -1779.36886776%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.61,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.71,"transform":"translate3d(0, -604.93479288%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.8,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.85,"transform":"translate3d(0, -227.16693582000002%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.92,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.96,"transform":"translate3d(0, -98.71320888%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":1,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"}],"delay":0,"duration":600,"fill":"both"}] Scribbled Underline

What are its Applications?

[{"selector":"#anim-ff289d7c-51f9-4aaa-9fc0-8d0de47d4836","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-2d39d547-bab7-469f-95f9-b0e825427302","keyframes":{"transform":["translate3d(0px, -632.77796%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f8021b4b-36fe-489f-afb2-a2c5a0e37e89","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ae3ef68d-02d3-4d9b-aba5-577e0b8aabf6","keyframes":{"transform":["translate3d(0px, -894.2762%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-a8e07747-5800-47cb-8e97-0703d04140b9","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-0d9c1a67-7b5e-4cec-b59b-9ff6c5d3c39f","keyframes":{"transform":["translate3d(0px, -6490.2696%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Scribbled Underline

Every day connect

[{"selector":"#anim-bde9e954-8f20-4264-9454-d1286da146ce","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-6edd1091-9c74-4370-be53-0a607968b173","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-be61a74c-2999-426b-804d-295884d0cbeb","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-036f8c21-3cbd-4201-a13e-5f7ebcbebda7","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-250ed7f6-9550-4fc5-a5ff-947023e97e4d","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-a1f88df8-6781-40a2-ae1f-20be1eed6f4b","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Scribbled Underline

What is Series Spiral?

[{"selector":"#anim-08830484-2652-4e4e-a419-7a03fc9abd49","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-e6f82185-0c8f-4418-a65f-c1964157e9ca","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-db97d9bf-993b-4af8-b539-de5f46b5e63f","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-c3e3e4fd-5a2b-4e29-aaf8-d56566269fd9","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-e5356118-8c35-4fcd-83e8-d9c8c9479552","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-2c8f6fd2-617d-438d-bc75-52404c3ea04d","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-fc2871ef-63ae-411a-99b2-ecf557655dc5 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-21.694338509140447%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Scribbled Underline

Mystery behind Space

[{"selector":"#anim-6eb16301-62a0-4de9-a8f2-b4bb976917bc [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-29.136646310984492%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-10866d98-45de-4673-a6de-321957e6423f","keyframes":{"transform":["translate3d(124.18773%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ede11dd2-bde1-4c9a-bc35-104f3f072810","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ecdd4d0a-619e-45c8-bb7a-d34b030c526d","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-5e50f999-807b-4161-afbe-de90922e539a","keyframes":{"transform":["translate3d(114.87342%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-eb400d3d-890b-400b-a94d-2b94c78c5d7e","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b41261c3-f700-4ae9-b4b1-1f6cde18553f","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-5cd0adbf-c160-4f39-a5d2-202e212075a5","keyframes":{"transform":["translate3d(200.72990%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-191d4c88-2841-4b1f-858b-242446b8eba6","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b6f2f396-0aad-4788-8ff3-0b44fa126eeb","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] Scribbled Underline

Why only November 23?

[{"selector":"#anim-06fe181e-22b0-4448-a316-a82b4978fc47","keyframes":{"transform":["scale(1)","scale(1.5)","scale(0.95)","scale(1)"],"offset":[0,0.33,0.66,1]},"delay":0,"duration":1450,"easing":"ease-in-out","fill":"both","iterations":1}] [{"selector":"#anim-8834db93-8896-484d-9a2c-8fd65c8e8283","keyframes":{"transform":["scale(1)","scale(1.5)","scale(0.95)","scale(1)"],"offset":[0,0.33,0.66,1]},"delay":0,"duration":1450,"easing":"ease-in-out","fill":"both","iterations":1}] [{"selector":"#anim-70f67306-765f-4211-af80-b96e22572ad3","keyframes":{"transform":["scale(1)","scale(1.5)","scale(0.95)","scale(1)"],"offset":[0,0.33,0.66,1]},"delay":0,"duration":1450,"easing":"ease-in-out","fill":"both","iterations":1}] Scribbled Underline

Why was

November 23

chosen to observe

Fibonacci Day?

What is Fibonacci?

It is a systematically arranged collection of mathematical theorems named after Leonardo Fibonacci

Who was Fibonacci?

Also called Leonardo of Pisa, he was an influential Italian mathematician during the Middle Ages

What is Fibonacci Sequence?

It is a set of integers where each number is the sum of the two preceding numbers

Why is it Nature’s Secret Code?

It has a presence in nature, from DNA structures to the spiral patterns of hurricanes

What are its Applications?

Stock trading, computing, and architectural design

Every day connect

This sequence manifests in biological settings, seen in the branching of trees and patterns of petals in flowers

What is Series Spiral?

A logarithmic spiral formed by connecting the corners of squares with side lengths corresponding to Fibonacci numbers

Mystery behind Space

This spiral is seen in nautilus shells, and the spiral arms of galaxies

Why only November 23?

When written in mm/dd format, 11/23 forms the Fibonacci sequence: 1, 1, 2, 3