St. George Jackson Mivart. Photograph by Barraud & Jerrard. https://www.rawpixel.com/image/14006519/st-george-jackson-mivart-photograph-barraud-jerrardFree Image from public domain licenseChristiaan Everhard Vaillant (1746-1829), Government Official (c. 1819) by Charles Howard Hodges https://www.rawpixel.com/image/13744123/image-face-person-artFree Image from public domain licenseFig. 52 by Guillaume Benjamin Duchenne and Adrien Alban Tournachon https://www.rawpixel.com/image/14317970/fig-guillaume-benjamin-duchenne-and-adrien-alban-tournachonFree Image from public domain licensePink fireworks background for banner https://www.rawpixel.com/image/11929583/pink-fireworks-background-for-bannerView licenseCharles Bell. Colour mezzotint by H. Goffey after J. Stevens. https://www.rawpixel.com/image/13951270/charles-bell-colour-mezzotint-goffey-after-stevensFree Image from public domain licenseYaxha-Nakum-Naranjo National Park, Petén, Guatemala. Free public domain CC0 image. https://www.rawpixel.com/image/6202539/photo-image-public-domain-freeFree Image from public domain licenseSwatow, Kwangtung province, China. Photograph, 1981, from a negative by John Thomson, 1871. https://www.rawpixel.com/image/13959027/photo-image-face-person-clothingFree Image from public domain licenseA shoe-seller who has one foot and goes himself unshod. Mezzotint by J. Gole after G.M. Mitelli. https://www.rawpixel.com/image/14021165/image-cartoon-face-personFree Image from public domain licensePortret van Guercino (1789) by Carlo Lasinio and Guercino https://www.rawpixel.com/image/13777800/portret-van-guercino-1789-carlo-lasinio-and-guercinoFree Image from public domain licenseJohn Bayly. Stipple engraving by H.R. Cook after Smith of Chichester. https://www.rawpixel.com/image/13973673/john-bayly-stipple-engraving-hr-cook-after-smith-chichesterFree Image from public domain licensePortret van Frederik Bernard s'Jacob (1906) by Pieter Dupont https://www.rawpixel.com/image/13761781/portret-van-frederik-bernard-sjacob-1906-pieter-dupontFree Image from public domain licenseAcht jonge vrouwen in een cirkel, van onder gefotografeerd (1916) by anonymous https://www.rawpixel.com/image/13756508/acht-jonge-vrouwen-een-cirkel-van-onder-gefotografeerd-1916-anonymousFree Image from public domain licenseView within Crawford Notch, New Hampshire by Dr Samuel A Bemis https://www.rawpixel.com/image/14275691/view-within-crawford-notch-new-hampshire-samuel-bemisFree Image from public domain licenseRonald Ross (left) and Donald Morphett Mars Ross (right). Photograph by Mee Cheung, Kulangsu, Amoy. https://www.rawpixel.com/image/13967328/photo-image-face-people-shirtFree Image from public domain licensePortrait of Constantijn Huygens, Poet, Secretary to Prince Frederick Henry and Prince William II and First Councilor and… https://www.rawpixel.com/image/13796284/image-face-person-artFree Image from public domain licenseA face expressing 'simple bodily pain' (left) and a face (right) expressing sadness. Engraving, c. 1760, after C. Le Brun. https://www.rawpixel.com/image/14019612/image-cartoon-face-personFree Image from public domain licenseFame, with a lamp, hovering among clouds over the earth: around her are seven portraits of philosophers in ovals. Engraving… https://www.rawpixel.com/image/14009226/image-clouds-cartoon-faceFree Image from public domain licenseGui Crescent Fagon. Coloured line engraving by L. G. Sichling after Sandoz. https://www.rawpixel.com/image/13981026/gui-crescent-fagon-coloured-line-engraving-sichling-after-sandozFree Image from public domain licenseFig. 20 by Guillaume Benjamin Duchenne and Adrien Alban Tournachon https://www.rawpixel.com/image/14316477/fig-guillaume-benjamin-duchenne-and-adrien-alban-tournachonFree Image from public domain licenseDagneaux, Mouchard, Police Imperiale by Nadar Gaspard Félix Tournachon https://www.rawpixel.com/image/14273092/dagneaux-mouchard-police-imperiale-nadar-gaspard-felix-tournachonFree Image from public domain licenseA dancing girl and musician. Gouache painting by an Indian painter. https://www.rawpixel.com/image/13953236/dancing-girl-and-musician-gouache-painting-indian-painterFree Image from public domain licenseSir Henry Hallett Dale and Charles Frederick Code. Photograph, 1954. https://www.rawpixel.com/image/14005212/sir-henry-hallett-dale-and-charles-frederick-code-photograph-1954Free Image from public domain licenseJol Andersen by Prince Roland Napoleon Bonaparte and G Roche https://www.rawpixel.com/image/14310610/jol-andersen-prince-roland-napoleon-bonaparte-and-rocheFree Image from public domain licenseA Montenegrin man wearing national dress and a Montenegrin cap. https://www.rawpixel.com/image/13982248/montenegrin-man-wearing-national-dress-and-montenegrin-capFree Image from public domain licenseMan making wood furniture, Puerto Princesa, Palawan, Philippines, July 2017. https://www.rawpixel.com/image/6198589/photo-image-public-domain-wood-personFree Image from public domain licenseAlfred Chune Fletcher. Mezzotint by L. Goetze after J. D. Peddie, 1914. https://www.rawpixel.com/image/14018132/alfred-chune-fletcher-mezzotint-goetze-after-peddie-1914Free Image from public domain licenseZelfportret van Norbert van Bloemen (1690 - 1730) by Norbert van Bloemen https://www.rawpixel.com/image/13789042/zelfportret-van-norbert-van-bloemen-1690-1730-norbert-van-bloemenFree Image from public domain licenseA man is playing a type of flute and a boy is playing a drum. Etching by J.J. MartÃnez Espinosa. https://www.rawpixel.com/image/14006942/image-cartoon-face-personFree Image from public domain licenseFriern Hospital, London: a man's face showing tuberculosis of the skin (lupus vulgaris). Photograph, 1890/1910. https://www.rawpixel.com/image/13981411/photo-image-face-person-hospitalFree Image from public domain licenseJohann Zacharias Platner. Line engraving by J. M. Bernigeroth, 1749, after E. G. Haussmann. https://www.rawpixel.com/image/13975204/image-cartoon-face-personFree Image from public domain licensePortret van Aben Humeya, koning van Granada (1621 - 1676) by Theodor Matham https://www.rawpixel.com/image/13785694/portret-van-aben-humeya-koning-van-granada-1621-1676-theodor-mathamFree Image from public domain licenseZelfportret op 51-jarige leeftijd (1907) by Bernard Willem Wierink https://www.rawpixel.com/image/13736682/zelfportret-51-jarige-leeftijd-1907-bernard-willem-wierinkFree Image from public domain licenseNicolas François [] Charles [] Appert. Line engraving by A. Blanchard, 1843. https://www.rawpixel.com/image/14016857/nicolas-francois-charles-appert-line-engraving-blanchard-1843Free Image from public domain licenseFig. 60 by Guillaume Benjamin Duchenne and Adrien Alban Tournachon https://www.rawpixel.com/image/14317677/fig-guillaume-benjamin-duchenne-and-adrien-alban-tournachonFree Image from public domain licenseThomas Kirkpatrick Monro. Photograph by T. & R. Annan & Sons Ltd, 1932. https://www.rawpixel.com/image/13969688/thomas-kirkpatrick-monro-photograph-annan-sons-ltd-1932Free Image from public domain licensePierre Simon, Marquis de Laplace. Stipple engraving by J. Posselwhite after J. C. Naigeon. https://www.rawpixel.com/image/14012169/image-face-person-artFree Image from public domain licenseFriern Hospital, London: a seated man, wearing a hospital gown with a number stamped on it. Photograph, 1890/1910. https://www.rawpixel.com/image/14000309/photo-image-face-person-hospitalFree Image from public domain licenseSaint Mary (the Blessed Virgin) and Saint Joseph with the Christ Child. Engraving by A.L. Romanet after B. Schedoni. https://www.rawpixel.com/image/13974806/image-face-jesus-christ-personFree Image from public domain licenseHead of a woman expressing desire (left); head of a woman expressing hope (right). Etching by B. Picart, 1713, after C. Le… https://www.rawpixel.com/image/14011327/image-cartoon-face-personFree Image from public domain licenseThomas Hodgkin (1798-1866), physician and social reformer. Oil painting by John Burton and Sons. https://www.rawpixel.com/image/13955795/image-face-frame-personFree Image from public domain licenseMécanisme de la physionomie humaine, ou, Analyse électro-physiologique de l'expression des passions / [Guillaume Benjamin… https://www.rawpixel.com/image/13961925/image-face-person-artFree Image from public domain licenseSir George Christopher Molesworth Birdwood. Photograph by Elliott & Fry Ltd. https://www.rawpixel.com/image/13997312/sir-george-christopher-molesworth-birdwood-photograph-elliott-fry-ltdFree Image from public domain licenseNicolaus Copernicus (above); Theodore Beza (below). Line engraving, 1797, after T. Park. https://www.rawpixel.com/image/13992603/image-cartoon-face-personFree Image from public domain licenseRahere (above); his tomb effigy (below). Stipple engraving. https://www.rawpixel.com/image/13975322/rahere-above-his-tomb-effigy-below-stipple-engravingFree Image from public domain licenseA boy sitting on a fence, scaring away crows with a pair of clappers. Coloured line block after W. Bromley. https://www.rawpixel.com/image/13955346/image-cartoon-face-plantFree Image from public domain licenseHa-za-yon-ke-win [Old Bets] (One who gathers berries running) 120 years old. by Charles A Zimmerman https://www.rawpixel.com/image/14255994/photo-image-face-person-artFree Image from public domain licenseFriern Hospital, London: a woman suffering from mania, with forearm, hand and finger movements. Photograph, 1890/1910. https://www.rawpixel.com/image/13977517/photo-image-face-hand-personFree Image from public domain licensePortret van een onbekende dame met hoed (1879 - 1920) by Gaston Darbour https://www.rawpixel.com/image/13770628/portret-van-een-onbekende-dame-met-hoed-1879-1920-gaston-darbourFree Image from public domain licensePeking, Pechili province, China. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/13989071/photo-image-face-person-clothingFree Image from public domain licenseSir Edwin Ray Lankester. Photograph by Elliott & Fry Ltd, 1918. https://www.rawpixel.com/image/13981835/sir-edwin-ray-lankester-photograph-elliott-fry-ltd-1918Free Image from public domain licenseArteries of the neck: dissection. Coloured lithograph after G.D. Dermott by G. Scharf, 1824/25. https://www.rawpixel.com/image/13975398/image-face-person-artFree Image from public domain licenseMy personal experiences in equatorial Africa : as medical officer of the Emin Pasha relief expedition / by Thomas Heazle… https://www.rawpixel.com/image/14007319/image-cartoon-face-plantFree Image from public domain licenseAlexander Alessi [Alexius]. Line engraving by Ruffonus (Ruphon), 1657. https://www.rawpixel.com/image/13961830/alexander-alessi-alexius-line-engraving-ruffonus-ruphon-1657Free Image from public domain license[Ernest] Meissonier, peintre by Nadar Gaspard Félix Tournachon https://www.rawpixel.com/image/14272023/ernest-meissonier-peintre-nadar-gaspard-felix-tournachonFree Image from public domain licenseThe present state of Russia, in a letter to a friend at London / Wwritten by an eminent person [i.e. S. Collins] residing at… https://www.rawpixel.com/image/13987603/image-cartoon-face-personFree Image from public domain licensePortrait of Johan Maurits (1604-79), count of Nassau-Siegen and governor of Brazil (1670 - 1680) by Michiel van Musscher https://www.rawpixel.com/image/13744557/image-face-person-artFree Image from public domain licenseGuy de Chauliac. Stipple engraving by A. Tardieu after himself. https://www.rawpixel.com/image/14010606/guy-chauliac-stipple-engraving-tardieu-after-himselfFree Image from public domain license A husky-as-intrepid-reporter statue on the campus of Northern Illinois University in DeKalb… https://www.rawpixel.com/image/8068785/photo-image-dog-grass-artFree Image from public domain license