Where did our written numbers come from? (Credit: Nikita Rogul/Shutterstock) The history of math is murky, predating any written records. When did humans first grasp the basic concept of a number? What about size and magnitude, or form and shape? In my math history courses and my research travels in Guatemala, Egypt and Japan, I’ve been especially interested in the commonality and differences of mathematics from various cultures. Although no one knows math’s exact origins, modern mathematicians like myself know that spoken language precedes written language by scores of millennia. Linguistic clues show how people around the world must have first developed mathematical thought.