O sábio passou boa parte da vida em Alexandria. Em 255 a.C., criou a esfera armilar; calculou com bastante precisão para a época a distância da Terra ao Sol. Em 236 a.C., foi escolhido como director da famosa Biblioteca de Alexandria. Acredita-se que Eratóstenes tenha ficado cego em 194 a.C. e, um ano depois, tenha morrido por inanição, propositadamente deixando de se alimentar.
He came up with the pythagorean theorem
I Don't Know. Have a nice day.
his theory for right angled triangles
It is difficult to determine the "best" math genius in the world as mathematical abilities and contributions vary. However, some notable names include mathematicians like Carl Friedrich Gauss, Leonhard Euler, and Srinivasa Ramanujan, who made substantial contributions to mathematics.
Some of the lasting contributions of ancient Egyptian civilization cover areas such as mathematics, engineering and medicine.
Eratosthenes earned the equivalent of a degree in Athens by studying with some of the greatest mathematicians in that time period
The title "Father of Mathematics" is often attributed to the ancient Greek mathematician Euclid, known for his work in geometry, particularly his influential text "Elements." However, some may also refer to Archimedes for his contributions to mathematics and physics. Additionally, Pythagoras is another significant figure in the history of mathematics, renowned for his contributions to number theory and geometry. Each of these mathematicians has made foundational contributions that have shaped the field.
Google: Peano, Fibonacci edit: The above are contributors, not contributions so it does not answer the question. Italian geometry of about a century ago was the start of what is considered "modern geometry." Italy is still a strong contributor to geometry as well as to practically all fields of mathematics.
John Vann is not a widely recognized figure in the field of mathematics, and it is possible that there may be some confusion regarding his contributions. If you are referring to a specific individual or context, please provide more details. However, if you meant John von Neumann, he made significant contributions to various areas including game theory, functional analysis, quantum mechanics, and computer science, laying the groundwork for modern computing and mathematics.
some parents and 57 sisters and brothers
He invented "The Calculus". There is some argument regarding who gets the most credit; Leibnitz and others contributed.
He did not do so. Earth was well-known to be a globe for at least two hundred years before Eratosthenes' time. What Eratosthenes did was to measure the earth's circumference for the first time. He did that at some time between 236 BC and 195 BC.