evidencehistorical
The concept of zero was introduced to the Islamic world by Persian mathematician al-Khwarizmi in the 9th century.
30% confidence
During the Islamic Golden Age, al-Khwarizmi studied Indian math texts and explained the use of zero in his book. This helped spread zero and the Hindu-Arabic numeral system across the Middle East and later into Europe. His work formed the foundation for algebra and modern arithmetic.
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