Berossus Hellenistic Babylonian historian and astronomer Conon of Samos, the Greek astronomer Demetrius of Phalerum, Greek philosopher and orator Dicaearchus, Greek philosopher and scientist Epicurus, Greek philosopher Eratosthenes, Greek mathematician, geographer, and astronomer Euclid, the Greek geometer Han Fei (韓非), Chinese philosopher Manetho, Hellenistic Egyptian historian Mencius, Chinese philosopher Philo of Byzantium, Greek mechanic Pyrrho, Greek philosopher Theophrastus, Greek philosopher Timon of Phlius, Greek philosopher Xun Kuang (荀況, Xun Li), Chinese philosopher Zeno of Citium, Greek philosopher Zenodotus, Greek grammarian Sovereign states See: List of sovereign states in the 3rd century BC. References -7 -97