Eratosthenes

Eratosthenes of Cyrene (c. 276 BCE – c. 195/194 BCE) was a Greek mathematician, geographer, poet, astronomer, and music theorist. He was also the chief librarian at the Library of Alexandria.
==Biography==
At some point during his lifetime, Eratosthenes wrote a work on geometry, which calculated the distance between the Sun and Earth as being two hundred and fifty thousand stadia. He made the calculations after comparing the shadow angles of Syene and Alexandria when the sun struck both cities on the summer solstice.Assassin's Creed: Origins
His work was later inscribed on papyruses in Egypt and was used for study by geographers in the Great Library.
==Gallery==
ACO Erastothenes' Geometry.jpg|Eratosthenes' Geometry
DTAE Map of the World.png|A map of the world by Eratosthenes, circa 240 BCE
==Appearances==
*Assassin's Creed: Origins 
*Assassin's Creed: Mirage 
==References==
Category:276 BCE births
Category:190s BCE deaths
Category:Individuals
Category:Egyptians
Category:Alexandrians
Category:Cyreneans
Category:Ethnic Greeks
Category:Poets
Category:Mathematicians
Category:Scientists
Category:Inventors
Category:Scholars
Category:Geographers
Category:Suicides