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Timeline of geometry : ウィキペディア英語版 | Timeline of geometry
A timeline of algebra and geometry ==Before 1000 BC==
* ca. 2000 BC — Scotland, Carved Stone Balls exhibit a variety of symmetries including all of the symmetries of Platonic solids. * 1800 BC — Moscow Mathematical Papyrus, findings volume of a frustum * 1650 BC — Rhind Mathematical Papyrus, copy of a lost scroll from around 1850 BC, the scribe Ahmes presents one of the first known approximate values of π at 3.16, the first attempt at squaring the circle, earliest known use of a sort of cotangent, and knowledge of solving first order linear equations
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