Mathematicians and astronomers: twenty portraits. Engraving by J.W. Cook, 1825. https://www.rawpixel.com/image/13989355/mathematicians-and-astronomers-twenty-portraits-engraving-jw-cook-1825Free Image from public domain licenseChrist resurrected emerges from his tomb. Line engraving by S.A. Bolswert after P.P. Rubens. https://www.rawpixel.com/image/14015258/image-dog-angel-jesus-christFree Image from public domain license