Proposed places a conjecture in the year it was first stated. Wikipedia records the Poincare conjecture as proposed "in 1904," the starting point of nearly a century of failed and partial attempts before it was finally resolved. Browsing by proposed year traces how long an unresolved question has actually stood.
Facts
Comparison
Era Of Emergence 1930
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Sources
1. Wikipedia: Algebra
Wikimedia FoundationHistory sectionQuote, History section
This changed with the Persian mathematician Al-Khwarizmi, who published his The Compendious Book on Calculation by Completion and Balancing in 825 CE. Al-Khwarizmi provided the first analytical theory for solving equations by classifying them into six standard forms and offering systematic, step-by-step procedures for their solutions.
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