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Classical Geometry & Axiomatic Proofs: From Nine Chapters to Euclid

Encyclopedia/1. The Cosmos & The Natural World/1. Mathematics & Formal Systems/01. Geometry & Spatial Systems  •  Curated by Admin Timeline.sg

This timeline traces the parallel development of geometric deduction and spatial calculation across ancient civilizations, highlighting key milestones from Chinese, Indian, Greek, and Islamic traditions, including the Zhoubi Suanjing, Euclid's Elements, Liu Hui's Pi algorithm, and other foundational contributions up to 1600 CE.

Chronological Storyline (45 Milestones)

1800 BCE

Plimpton 322 Tablet

Babylonian clay tablet containing Pythagorean triples, demonstrating early geometric reasoning. #math #history

Plimpton 322 Tablet
Plimpton 322 Tablet
By photo author unknown - image copied from http://www.math.ubc.ca/~cass/courses/m446-03/pl322/pl322.html, Public domain, https://commons.wikimedia.org/w/index.php?curid=1170904
800 BCE

Baudhayana Sulba Sutras

Indian text contains a statement of the Pythagorean theorem for constructing altars. #math #india

600 BCE

Thales' Geometry

Thales of Miletus introduces deductive geometry, proving theorems about circles and triangles. #math #greece

Thales' Geometry
Thales' Geometry
By Wilhelm Meyer - own scan, Public domain, https://commons.wikimedia.org/w/index.php?curid=11037570
500 BCE

Pythagorean School

Pythagoras and his followers study geometry, numbers, and the Pythagorean theorem. #math #greece

Pythagorean School
Pythagorean School
By Unknown author - Photo by Szilas, 2013-03-04, Public domain, https://commons.wikimedia.org/w/index.php?curid=36520519
430 BCE

Hippocrates Quadrature of Lunes

Hippocrates of Chios squares lunes, showing that certain curvilinear areas can be computed. #math #geometry

Hippocrates Quadrature of Lunes
Hippocrates Quadrature of Lunes
By No machine-readable author provided. Audriusa assumed (based on copyright claims). - No machine-readable source provided. Own work assumed (based on copyright claims)., CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=478595
350 BCE

Aristotle on Axioms

Aristotle discusses axioms and deductive reasoning in Posterior Analytics, influencing mathematical proof. #philosophy #math

Aristotle on Axioms
Aristotle on Axioms
By After Lysippos - Jastrow (2006), Public domain, https://commons.wikimedia.org/w/index.php?curid=1359807
350 BCE

Mozi's Geometric Definitions

Mozi (Mohist) text includes definitions of geometric concepts like point, line, square. #math #china

Mozi's Geometric Definitions
Mozi's Geometric Definitions
By Vjacheslav Rublevskiy - https://www.flickr.com/photos/193162016@N04/51221161306/, CC0, https://commons.wikimedia.org/w/index.php?curid=106219380
300 BCE

Euclid's Elements Published

Euclid compiles the Elements, a systematic axiomatic treatment of geometry, used for over two millennia. #math #geometry

Euclid's Elements Published
Euclid's Elements Published
By University of Pennsylvania Museum of Archaeology and Anthropology - https://openn.library.upenn.edu/Data/0016/html/e2748.html, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=169166171
300 BCE

Euclid's Parallel Postulate

Euclid states his fifth postulate, later challenged and leading to non-Euclidean geometry. #math #geometry

Euclid's Parallel Postulate
Euclid's Parallel Postulate
By Dickdock - Own work based on: Parallel postulate.svg by Harkonnen2, Public domain, https://commons.wikimedia.org/w/index.php?curid=4559984
250 BCE

Archimedes Measures Circle

Archimedes approximates pi using inscribed and circumscribed polygons. #math #geometry

Archimedes Measures Circle
Archimedes Measures Circle
By Domenico Fetti - http://archimedes2.mpiwg-berlin.mpg.de/archimedes_templates/popup.htm, Public domain, https://commons.wikimedia.org/w/index.php?curid=146592
240 BCE

Eratosthenes Measures Earth

Eratosthenes uses geometry to estimate the Earth's circumference. #math #geography

Eratosthenes Measures Earth
Eratosthenes Measures Earth
By Unknown author, Public domain, https://commons.wikimedia.org/w/index.php?curid=494949
200 BCE

Apollonius Conics

Apollonius of Perga writes Conics, defining parabola, ellipse, and hyperbola. #math #geometry

Apollonius Conics
Apollonius Conics
By Giovanni Battista Memo - File:ApolloniiPergeiOpera1537.jpg, Public domain, https://commons.wikimedia.org/w/index.php?curid=70830662
150 BCE

Liu Xin's Standard Measures

Chinese scholar Liu Xin uses geometry for standard volume measures. #math #china

100 BCE

Zhoubi Suanjing

Chinese mathematical text, 'The Arithmetical Classic of the Gnomon and Circular Paths', contains early geometry and the Gougu theorem. #math #china

Zhoubi Suanjing
Zhoubi Suanjing
By Unknown author, Public domain, https://commons.wikimedia.org/w/index.php?curid=104738
1 CE

Nine Chapters on the Mathematical Art

Chinese classic covering practical geometry, area calculations, and the Gougu theorem. #math #china

Nine Chapters on the Mathematical Art
Nine Chapters on the Mathematical Art
By 中國書店海王邨公司 - https://pmgs.kongfz.com/detail/1_158470/, Public domain, https://commons.wikimedia.org/w/index.php?curid=22913440
75 CE

Heron's Formula

Heron of Alexandria derives formula for triangle area using side lengths. #math #geometry

Heron's Formula
Heron's Formula
By Jamgoodman - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=74872701
263 CE

Liu Hui's Pi Algorithm

Liu Hui improves pi approximation to 3.1416 using a 192-sided polygon. #math #china

Liu Hui's Pi Algorithm
Liu Hui's Pi Algorithm
By Unknown - "Liu Hui (220 - 280) - Biography - MacTutor History of Mathematics" https://mathshistory.st-andrews.ac.uk/Biographies/Liu_Hui/, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=130481910
480 CE

Zu Chongzhi's Pi

Chinese mathematician Zu Chongzhi calculates pi between 3.1415926 and 3.1415927. #math #china

Zu Chongzhi's Pi
Zu Chongzhi's Pi
By 三猎 - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=54922069
499 CE

Aryabhata's Geometry

Indian mathematician Aryabhata gives accurate approximations of pi and area of a triangle. #math #india

Aryabhata's Geometry
Aryabhata's Geometry
By Cpjha13 - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=49883192
628 CE

Brahmagupta on Cyclic Quadrilaterals

Brahmagupta's Brāhmasphuṭasiddhānta provides formula for cyclic quadrilaterals. #math #india

820 CE

Al-Khwarizmi's Geometry

Al-Khwarizmi writes on geometry and algebra, influencing Islamic mathematics. #math #islam

Al-Khwarizmi's Geometry
Al-Khwarizmi's Geometry
By Zarateman - Own work, CC0, https://commons.wikimedia.org/w/index.php?curid=162213187
900 CE

Thabit ibn Qurra's Geometry

Thabit ibn Qurra works on geometry of sections and translation of Greek works. #math #islam

1020 CE

Alhazen's Optics

Ibn al-Haytham (Alhazen) uses geometry in optics, analyzing reflection and refraction. #math #physics

Alhazen's Optics
Alhazen's Optics
By Adolph Boÿ, engraved by Jeremias Falck. Used as the frontispiece to Johannes Hevelius, Selenographia, 1647 - https://www.loc.gov/resource/rbctos.2017rosen1321/?sp=9&r=0.059,0.617,0.327,0.182,0, Public domain, https://commons.wikimedia.org/w/index.php?curid=165125519
1025 CE

Al-Biruni's Geodesy

Al-Biruni measures Earth's radius using trigonometry and geometry. #math #geodesy

Al-Biruni's Geodesy
Al-Biruni's Geodesy
By The original uploader was Romanm at Slovenian Wikipedia. - Originally from sl.wikipedia; description page is/was here., Public domain, https://commons.wikimedia.org/w/index.php?curid=2590841
1070 CE

Omar Khayyam's Geometric Algebra

Omar Khayyam solves cubic equations using conic sections. #math #islam

Omar Khayyam's Geometric Algebra
Omar Khayyam's Geometric Algebra
By Alireza Javaheri - https://web.archive.org/web/20161024154356/http://www.panoramio.com/photo/85093358, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=55909539
1150 CE

Bhaskara II's Geometry

Bhaskara II writes Lilavati, covering geometry, trigonometry, and calculus-related ideas. #math #india

Bhaskara II's Geometry
Bhaskara II's Geometry
By Unknown author - Own work, Public domain, https://commons.wikimedia.org/w/index.php?curid=150275955
1200 CE

Fibonacci's Practica Geometriae

Fibonacci writes Practica Geometriae, combining Euclidean geometry with practical measurement. #math #europe

Fibonacci's Practica Geometriae
Fibonacci's Practica Geometriae
By Taty2007 - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=5809387
1202 CE

Fibonacci's Liber Abaci

Fibonacci introduces Hindu-Arabic numerals but also includes geometric problems. #math #europe

Fibonacci's Liber Abaci
Fibonacci's Liber Abaci
By Unknown author, Public domain, https://commons.wikimedia.org/w/index.php?curid=720501
1240 CE

Yang Hui's Magic Squares

Yang Hui develops magic squares and geometric puzzles. #math #china

Yang Hui's Magic Squares
Yang Hui's Magic Squares
By Yáng Huī (楊輝), ca. 1238–1298) - w:en:Image:Yanghui_triangle.gif, Public domain, https://commons.wikimedia.org/w/index.php?curid=1189650
1247 CE

Qin Jiushao's Mathematical Treatise

Chinese mathematician Qin Jiushao solves polynomial equations and geometry. #math #china

Qin Jiushao's Mathematical Treatise
Qin Jiushao's Mathematical Treatise
By Qin Jiushao 秦九韶 - 1842 printing Shu Shu Jiu Zhang, Public domain, https://commons.wikimedia.org/w/index.php?curid=3414657
1250 CE

Nasir al-Din al-Tusi's Trigonometry

Al-Tusi separates trigonometry from astronomy and proves the law of sines. #math #trigonometry

Nasir al-Din al-Tusi's Trigonometry
Nasir al-Din al-Tusi's Trigonometry
By Unknown author - scan of stamp 30 May 2006, Public domain, https://commons.wikimedia.org/w/index.php?curid=829461
1300 CE

Bradwardine on Geometry

Thomas Bradwardine writes on geometry and the continuum, influencing medieval mathematics. #math #europe

Bradwardine on Geometry
Bradwardine on Geometry
By Dorieo - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=69888631
1350 CE

Oresme's Geometry of Motion

Nicole Oresme uses geometry to represent motion and functions, foreshadowing coordinate geometry. #math #europe

Oresme's Geometry of Motion
Oresme's Geometry of Motion
By Nicole Oresme / Aristotle - Nicole Oresme (1400-1420) Traité de la sphère; Aristote, De caelo et de mundo, traduction française par Nicole Oresme, p. 1r OCLC: 1177977521., Public domain, https://commons.wikimedia.org/w/index.php?curid=436922
1400 CE

Madhava's Pi Series

Madhava of Sangamagrama discovers infinite series for pi, a precursor to calculus. #math #india

1420 CE

Al-Kashi's Pi Calculation

Persian mathematician Jamshid al-Kashi computes pi to 16 decimal places using polygons. #math #islam

Al-Kashi's Pi Calculation
Al-Kashi's Pi Calculation
By Christies.com - https://www.christies.com/lot/lot-6162908, Public domain, https://commons.wikimedia.org/w/index.php?curid=115212624
1482 CE

First Printed Euclid

Erhard Ratdolt prints the first edition of Euclid's Elements in Venice. #math #printing

1525 CE

Dürer's Geometry for Artists

Albrecht Dürer publishes 'The Painter's Manual' on geometry for artists, including constructions. #art #math

Dürer's Geometry for Artists
Dürer's Geometry for Artists
By Albrecht Dürer - https://www.sammlung.pinakothek.de/de/artwork/Qlx2QpQ4Xq, Public domain, https://commons.wikimedia.org/w/index.php?curid=63803877
1550 CE

Recorde's Geometry Textbook

Robert Recorde's 'The Pathway to Knowledge' introduces geometric reasoning in English. #math #education

Recorde's Geometry Textbook
Recorde's Geometry Textbook
By Basher Eyre - This file was derived from: St Mary, Tenby- memorial (13) (geograph 6264760).jpg, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=124709772
1570 CE

Commandino's Euclid Edition

Federico Commandino translates and comments on Euclid's works, aiding Renaissance mathematics. #math #renaissance

Commandino's Euclid Edition
Commandino's Euclid Edition
By Scuola del Barocco - www.urbinoelaprospettiva.it/commandino.asp, Public domain, https://commons.wikimedia.org/w/index.php?curid=7043617
1572 CE

Vieta's New Geometry

François Viète develops analytic geometry and trigonometric solutions, introducing symbolic notation. #math #europe

Vieta's New Geometry
Vieta's New Geometry
By Unknown author, Public domain, https://commons.wikimedia.org/w/index.php?curid=81021
1575 CE

Bombelli's Imaginary Geometry

Raphael Bombelli uses geometry to represent imaginary numbers, advancing algebra. #math #algebra

Bombelli's Imaginary Geometry
Bombelli's Imaginary Geometry
By Unknown author - Book printed by editor Giovanni Rossi, Public domain, https://commons.wikimedia.org/w/index.php?curid=1591687
1585 CE

Stevin's Decimal Fractions

Simon Stevin introduces decimal fractions and works on geometry in The Principles of the Art of Weighing. #math #europe

Stevin's Decimal Fractions
Stevin's Decimal Fractions
By Unknown author - Digitool Leiden University Library, http://digitalcollections.universiteitleiden.nl, Public domain, https://commons.wikimedia.org/w/index.php?curid=72690
1591 CE

Viète's Analytic Geometry

François Viète introduces symbolic algebra and applies it to geometric problems. #math #algebra

1595 CE

Van Roomen's Pi

Adriaan van Roomen computes pi to 15 decimals using geometric methods. #math #europe

1600 CE

Kepler's Geometric Astronomy

Johannes Kepler uses geometric models to describe planetary motion, leading to his laws. #math #astronomy

Kepler's Geometric Astronomy
Kepler's Geometric Astronomy
By August Köhler [1] - Kepler-Museum in Weil der Stadt, Public domain, https://commons.wikimedia.org/w/index.php?curid=9406242