Zenodotus of Ephesus

Zenodotus of Ephesus was a native of Ephesus who was born in the 3rd century BC during the time when Ephesus was being ruled by Ptolemaic dynasty. The Ptolemaic king moved Zenodotus from Ephesus to Alexandria in Egypt. Zenodotus became the teacher of the royal children and later he was pointed as the director of the library of Alexandria which was the biggest library of its time. Zenodotus created the classification system for the libraries which is even used today by putting books in different rooms depending on their content.