1. 6 th Grade, HEKASI Mr. Ichigo Korosaki February 14, 2012

2. Born: 276 BC in Cyrene Died: 194 BC in Alexandria (age of 82) Ethnicity: Greek Occupation: Scholar, librarian, poet, and inventor; also a mathematician, athlete, geographer, astronomer and music theorist.

3.  Invented the discipline of geography; invented a system of Latitude and Longitude  Calculated the circumference of the earth; the distance from the earth to the sun and Leap Day  Created the map of the world  Invented the armillary sphere  Proposed a simple algorithm for finding Prime Numbers

4.  Founder of Scientific Chronology  Second best in the world in almost every field  Third chief librarian of the Greek Library of Alexandria  Known as the “ Father of Geography “

5. Eratosthenes is one of the best scientists ever lived. A well rounded and versatile man that had done a lot for the advent of new knowledge that would be a springboard towards new discoveries.