number symbolism: Quick Facts

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Close-up of a sunflower head showing seeds arranged in a spiral pattern that follows the Fibonacci sequence.

Assassination of Abraham Lincoln

Diagram showing four types of polygonal numbers with colored dots arranged in geometric patterns: blue triangles for triangular numbers, green squares for square numbers, red pentagons for pentagonal numbers, and purple hexagons for hexagonal numbers, each illustrating how numbers like 1, 3, 6, 10, 4, 9, 16, 5, 12, 22, 6, 15, and 28 can be visually represented.

Yin and yang symbol

Albrecht Dürer: The Four Horsemen

Creation of Adam

Geocentric system

Whirling dervishes in white robes perform the Sema ritual in a circular hall with a wooden floor, as a large audience watches from balconies in Yenikapi Mevlevihanesi, Istanbul.

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