Resolved year places a conjecture's proof in the year it actually appeared. Wikipedia notes that "in papers posted to the arXiv repository in 2002 and 2003, Perelman presented his work proving the Poincare conjecture," nearly a century after Poincare first posed it. Browsing by resolved year shows how long a hard problem can remain open before it finally falls.
Facts
Comparison
Era Of Emergence 21st century
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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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