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The visual cortex region of the brain, which is responsible for processing visual information came millions of years before reading and writing was invented.
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Our brain has the ability to respond to certain patterns and try to make sense of them, using the visual perceptions known as Gestalt Principles, helping early scribblers to construct basic formations that stimulated the higher-order visual cortex regions of the brain.
Our brain's response to geometry and patterns started taking shape in creation of symmetrical tools known as Acheulean Tools, about 700,000 years ago.
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