
 Timeline of mathematics  Encyclopedia, History, Geography and Biography 
  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 
  1300s  Madhava is considered the father of mathematical analysis, who also worked on the power series for p and for sine and cosine functions, and along with other Kerala school mathematicians, founded the important concepts of Calculus 
  Timeline of mathematics, Before 1000 BC, 1st millennium BC, 1st millennium, 1000  1499, 16th century, 17th century, 18th century, 19th century, 20th century, 21st century, Note, Articles with unsourced statements, History of mathematics and Mathematics timelines. 
 www.arikah.com /encyclopedia/Timeline_of_mathematics (4480 words) 
