Theodōrus in Harpers Dictionary of Classical Antiquities (1898)

Of Samos, son of Rhoecus. In conjunction with his father, he erected the labyrinth of Lemnos (Pliny , Pliny H. N. xxxvi. 90), and advised the laying down of a layer of charcoal as part of the foundation of the Temple of Artemis at Ephesus (Diog. Laert. ii. 103). He is said to have lived for a long time in Egypt, where he and his brother Telecles learned the Egyptian canon of proportion for the human figure. He was considered by the Greeks as one of the inventors of the art of casting in bronze (Pausan. viii. 14, 8). He wrote a work on the Temple of Heré at Samos, which was begun by his father (Vitruv. vii. pref. 12).