Eratosthenes was a Hellenistic mathematician who lived during 276 - 195 B.C. He was born in Cyrene, Greece, which is now known as present-day Libya. He embarked on a journey to Athens, where he continued his studies. Around 240 BC, shortly following the death of the previous librarian, Eratosthenes became a librarian at the esteemed Library of Alexandria. He was such a well-rounded scholar that his colleagues gave the nickname “Pentathlos”. The nickname had a connotation of being balanced and excelling at multiple areas. This was certainly true, as Eratosthenes was not only a librarian, but a mathematician, astronomer, philosopher, geographer, historian, and poet as well.
Thus, Eratosthenes made many contributions that impact our world today.
Thus, Eratosthenes made many contributions that impact our world today.