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2070 BCE
Chinese Use
Chinese mathematicians use right angle theory -
Period: 2070 BCE to
History of Pythagorean Theorem and Fermat's Last Theorem
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1900 BCE
Babylonian Triples
Babylonian tablet containing Pythagorean triples -
1600 BCE
Babylonian Proof
Babylonians discover proof of Pythagorean Theorem -
800 BCE
Indian Proof
India's Sulvasutras compositions show Indian use of Pythagorean Theorem -
570 BCE
Birth of Pythagorus
Pythagorus born in Samos -
530 BCE
Pythagorus Credited With Proof
Pythagorus and his followers credited with discovering and proving Pythagorean Theorem -
500 BCE
Gouga Theorem Introduced
The Chinese version of Pythagorean Theorem, Gouga Theorem, discovered -
300 BCE
Euclid's Elements
Euclid proves Pythagorean theorem in Book 1, Proposition 47 -
300 BCE
Egyptian Use
Egyptian text mentioning use of Pythagorean Theorem -
100 BCE
Jiu Zhang Suanshu
Chinese text on history of mathematics shows proof of Pythagorean, or Gouga, Theorem -
250
Diophantine equations
Diophantus introduces equations that only have integral solutions -
1500
Leonardo da Vinci Proof
Leonardo da Vici proves Pythagorean Theorem -
Pierre de Fermat Born
Pierre de Fermat is born in France -
Death of Fermat
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Fermat's Last Theorem Published
Fermat's Last Theorem published after his death by his son. Theorem was discovered with no proof in the margin of a textbook. -
Euler's Conjecture
Based on Fermat, Euler conjectured that the number of terms on the left must equal power of exponents. -
Euler Searches for Proof of Fermat's Last Theorem
Euler initiates a search of Fermat's home looking for clues to solve his theorem. -
Germain Fails to Solve Fermat's Last Theorem
Sophie Germain attempts but fails to solve theorem. Work does spawn new mathematical research. -
President Garfield Proof
United states President James Garfield provides new proof of Pythagorean Theorem -
Manion Review of Clausen
P. Manion reviews Clausen’s work labeling it “the method of equal coefficients”. -
Einstein Proof
12 year-old Einstein discovers proof of Pythagorean Theorem -
Pythagorean Proposition Published
Elisha Scott Loomis publishes book with 371 categorized proofs of Pythagorean theorem -
Taniyama-Shimura Conjecture
Conjecture that elliptical fields are related to modular forms -
Counterexample to Euler's Conjecture
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Ribet Connects Taniyama-Shimura Conjecture to Fermat's Last Theorem
Kenneth Ribet discovered that if one could be proven, the other could be proven too. -
Wiles Proves Fermat's Last Theorem
Dr. Andrew Wiles submits proof of Fermat's Last theorem after seven years of research