The Nuttall Encyclopedia
Great Greek architect of the 5th century B.C., a contemporary of Pericles, designer of temples at Bussæ and Eleusis, and joint-designer with Callicrates of the world's one perfect building, the Parthenon, at Athens (437 B.C.).
Wood, James, ed. Entry for 'Ictinus'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/i/ictinus.html. Frederick Warne & Co Ltd. London. 1900.