Search Only Images Download this image Portrait of Pythagoras No info available for book source. Image ID: SIL-SIL14-p006-13 Supplied Caption: Portrait of Pythagoras. Lithograph by John B. Pendleton, 1798-1866. After A. Hartwell. Tags: mathematics, Astronomy, Pythagoras (ca. 580 BCE-ca. 500 BCE) Categories: Science Collection(s): Scientific Identity No Copyright - United States Request copy of image How can I use this image?