-
2500 BCE
The 12 Knot Rope (3-4-5 Triangle) in Egypt
Image from Jain, D. (2020, May 19). We were Always Wrong About the Origin of the Pythagoras Theorem. Retrieved May 24, 2020, from https://tathastuu.com/2020/04/origin-of-the-pythagoras-theorem.html -
1900 BCE
Babylonian Tablets with Pythagorean Triplets
Four Babylonian tablets from circa 1900–1600 BCE indicate some knowledge of the Pythagorean triplets (Brittanica, 2020). -
1800 BCE
Pimpton 322
The image is of Plimpton 322 is the tablet numbered 322 in the collection of G A Plimpton housed in Columbia University (O'Connor & Robertson, 2000). -
1600 BCE
Pythagorean Theorem Assumed Algebraic Form
It was with the
rise of modern algebra, circa 1600 CE , that the
theorem assumed its familiar algebraic form (Ratner, 2009). -
800 BCE
Theorem Mentioned In Baudhayana Sulba-sutra of India
Image adapted from Piotrowski, M. (2019, May 29). Mystery Of Numbers: Who Discovered The Pythagorean Theorem? Retrieved May 24, 2020, from https://www.look4ward.co.uk/x-files/mystery-of-numbers-who-discovered-the-pythagorean-theorem/ -
500 BCE
Pythagoras Discovers the Pythagorean Theorem
Image from Mastin, L. (2020). Pythagoras of Samos. Retrieved May 23, 2020, from -
400 BCE
Plato Finds Pythagorean Triplets By Combining Algebra and Geometry
Image from Meinwald, C. (2020, March 31). Plato. Retrieved May 24, 2020, from https://www.britannica.com/biography/Plato -
300 BCE
Euclid's Book of Elements
Euclid, "gave two proofs of the Pythagorean
Theorem: The first, Proposition 47 of Book I,
relies entirely on the area relations and is quite
sophisticated; the second, Proposition 31 of Book
VI, is based on the concept of proportion and is
much simpler" (Ratner, 2009). -
100 BCE
Chinese Pythagorean Theorem Proof
Image from Swetz, F. J., & Katz, V. J. (n.d.). Mathematical Treasures - Zhoubi suanjing. Retrieved May 24, 2020, from https://www.maa.org/press/periodicals/convergence/mathematical-treasures-zhoubi-suanjing -
220
Nine Chapters on the Mathematical Procedures Illustrates Pythagorean Triplets
The book contained problems and solutions "that involve finding the length of one of the sides of a right triangle when given the other two sides" (Britannica, 2020). -
Einstein Proves Pythagorean Theorem at 12 Years Old
Image from Ratner, B. (2009). Pythagoras: Everyone knows his famous theorem, but not who discovered it 1000 years before him. Journal of Targeting, Measurement and Analysis for Marketing, 17(3), 229-242. doi:10.1057/jt.2009.16 -
Pythagorean Theorem Used in Special Theory of Relativity
"Einstein used the Pythagorean
Theorem in the Special Theory of Relativity (in a
four-dimensional form), and in a vastly expanded
form in the General Theory of Relatively" (Ratner, 2009). -
Pythagorean Proposition written by Elisha Scott Loomis
The Pythagorean Proposition, a compendium of 371
proofs of the Pythagorean Theorem (Ratner, 2009). -
Present Use of Pythagorean Theorem
The Pythagorean Theorem is now utilized in construction, trigonometry, calculus, navigation, surveying, music, and in physics.