Cupid learning to read the letters of the alphabet. Engraving after A. Allegri, il Corrreggio. https://www.rawpixel.com/image/13975594/image-face-person-bookFree Image from public domain licenseChina. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/14013827/china-photograph-1981-from-negative-john-thomson-1869Free Image from public domain licenseAn alchemist at his furnace, hunched over bellows. Coloured mezzotint by H. Dawe after D. Teniers the younger. https://www.rawpixel.com/image/13953355/image-face-person-artFree Image from public domain licenseBeautiful beach sunset scenery photography. Free public domain CC0 image. https://www.rawpixel.com/image/6016215/photo-image-light-public-domain-pinkFree Image from public domain licenseCarolus Linnaeus. Stipple engraving by H. Meyer, 1806, after Hollmann. https://www.rawpixel.com/image/14004544/carolus-linnaeus-stipple-engraving-meyer-1806-after-hollmannFree Image from public domain licenseCotton Mather. Line engraving by W. J. Alais after P. Pelham, 1727. https://www.rawpixel.com/image/13994440/cotton-mather-line-engraving-alais-after-pelham-1727Free Image from public domain licensePierre Simon, Marquis de Laplace. Etching by C. N. Cochin, le jeune, 1762, after himself. https://www.rawpixel.com/image/13979547/image-face-person-artFree Image from public domain licenseFree hand drum image, public domain musical instrument CC0 photo. https://www.rawpixel.com/image/5903594/photo-image-white-background-public-domain-handFree Image from public domain licenseTwo Natives of Calabria, Italy by André Adolphe Eugène Disdéri https://www.rawpixel.com/image/14277587/two-natives-calabria-italy-andre-adolphe-eugene-disderiFree Image from public domain licenseThe Daughter of El Greco, by El Greco by Caldesi and Montecchi https://www.rawpixel.com/image/14314117/the-daughter-greco-greco-caldesi-and-montecchiFree Image from public domain licenseUnidentified woman wearing a bonnet with a bow, seated with hands together by George Washington Wilson https://www.rawpixel.com/image/14307510/photo-image-face-hand-personFree Image from public domain licenseFree dog with purple flower on the head image, public domain animal CC0 photo. https://www.rawpixel.com/image/5914767/image-background-public-domain-dogFree Image from public domain licenseLe Vagabond (The Vagabond) by André Adolphe Eugène Disdéri https://www.rawpixel.com/image/14284297/vagabond-the-vagabond-andre-adolphe-eugene-disderiFree Image from public domain licensePortrait of an unidentified woman by Henry Herschel Hay Cameron https://www.rawpixel.com/image/14284898/portrait-unidentified-woman-henry-herschel-hay-cameronFree Image from public domain licenseAn old woman sits reading at a table outside a house while three children watch the hen with her chicks. Engraving. https://www.rawpixel.com/image/13993049/image-dog-cartoon-faceFree Image from public domain licenseMary Squires, a gypsy renowned for her ugliness. Engraving. https://www.rawpixel.com/image/13994891/mary-squires-gypsy-renowned-for-her-ugliness-engravingFree Image from public domain licenseAlbrecht Daniel Thaer. Line engraving by A. Lefèvre after himself. https://www.rawpixel.com/image/13977674/albrecht-daniel-thaer-line-engraving-lefevre-after-himselfFree Image from public domain licenseViews in Woodward's Gardens. / [Self-portrait] by Eadweard J Muybridge https://www.rawpixel.com/image/14297006/views-woodwards-gardens-self-portrait-eadweard-muybridgeFree Image from public domain licenseIllustrations of China and its people : a series of two hundred photographs, with letterpress descriptive of the places and… https://www.rawpixel.com/image/14004776/photo-image-face-person-artFree Image from public domain licenseSir Humphry Davy. Stipple engraving by R. Hicks, 1829, after T. Phillips. https://www.rawpixel.com/image/13981083/sir-humphry-davy-stipple-engraving-hicks-1829-after-phillipsFree Image from public domain licenseAtrophie Cérébrale: Épilepsie Partielle Athétose by Paul Marie Léon Regnard https://www.rawpixel.com/image/14315957/atrophie-cerebrale-epilepsie-partielle-athetose-paul-marie-leon-regnardFree Image from public domain licensePortrait of George Sand by Nadar Gaspard Félix Tournachon https://www.rawpixel.com/image/14325450/portrait-george-sand-nadar-gaspard-felix-tournachonFree Image from public domain licenseAlexander Small. Mezzotint by J. Faber, junior, after B. Dandridge. https://www.rawpixel.com/image/14003680/alexander-small-mezzotint-faber-junior-after-dandridgeFree Image from public domain licenseGalen, standing in a glade, looks at a human skeleton on the ground. Engraving by H.F. Rose, 1820. https://www.rawpixel.com/image/13971099/image-plant-person-treeFree Image from public domain licenseJohann Rudolph Deiman. Aquatint attributed to E. Quenedey, 1800. https://www.rawpixel.com/image/14016753/johann-rudolph-deiman-aquatint-attributed-quenedey-1800Free Image from public domain licenseFree close up common basilisk lizard's head image, public domain animal CC0 photo. https://www.rawpixel.com/image/5909903/image-background-public-domain-freeFree Image from public domain licenseSir David Brewster, Mrs. Jones, and Colonel Colin Campbell by Thomas Rodger https://www.rawpixel.com/image/14311722/sir-david-brewster-mrs-jones-and-colonel-colin-campbell-thomas-rodgerFree Image from public domain licenseOn the application of suitable mechamism to a case of amputation of both hands / by F. Gustav Ernst. https://www.rawpixel.com/image/14018368/image-face-hand-personFree Image from public domain licenseFrançois Joseph Victor Broussais. Photograph after Leder. https://www.rawpixel.com/image/14007856/francois-joseph-victor-broussais-photograph-after-lederFree Image from public domain licensePhilosophers: John Mayow, John Evelyn. Line engraving by J. Caldwall, 1800. https://www.rawpixel.com/image/13978075/philosophers-john-mayow-john-evelyn-line-engraving-caldwall-1800Free Image from public domain licenseEugène Napoléon Vigla. Lithograph by C. Bornemann after Ch. Reutlinger. https://www.rawpixel.com/image/14011049/eugene-napoleon-vigla-lithograph-bornemann-after-ch-reutlingerFree Image from public domain licenseJean Baptiste Biot. Stipple engraving by A. Tardieu after himself, 1824. https://www.rawpixel.com/image/13992009/jean-baptiste-biot-stipple-engraving-tardieu-after-himself-1824Free Image from public domain license