A nun, traditionally identified as Suor Maria Celeste, daughter of Galileo Galilei. Oil painting. https://www.rawpixel.com/image/13952841/image-face-frame-personFree Image from public domain licenseAn apothecary in his laboratory concocting a mixture. Wood engraving by F.Mc F after, 1876, after H.S. Marks. https://www.rawpixel.com/image/13991653/image-cartoon-face-personFree Image from public domain licenseWilliam Harvey. Etching by C.A. Waltner, 1887, after C. Janssen. https://www.rawpixel.com/image/14015785/william-harvey-etching-ca-waltner-1887-after-janssenFree Image from public domain license[Joseph] Piétri by Nadar Gaspard Félix Tournachon and Adrien Alban Tournachon https://www.rawpixel.com/image/14272086/joseph-pietri-nadar-gaspard-felix-tournachon-and-adrien-alban-tournachonFree Image from public domain licenseAurelius Cornelius Celsus. Line engraving by J. van der Spyk, 1746. https://www.rawpixel.com/image/13994661/aurelius-cornelius-celsus-line-engraving-van-der-spyk-1746Free Image from public domain licenseNine famous Swedish doctors, numbered with a key from 28-36. Lithograph by A. Hardh. https://www.rawpixel.com/image/13981711/image-cartoon-face-peopleFree Image from public domain licenseProducing Lokta bark paper, Kailash, Bajhang District, Nepal, October 2017. https://www.rawpixel.com/image/6198508/photo-image-paper-public-domain-personFree Image from public domain licenseZelfportret van Isaac Israels (onvoltooid) (c. 1875 - c. 1934) by Isaac Israels https://www.rawpixel.com/image/13795789/zelfportret-van-isaac-israels-onvoltooid-c-1875-1934-isaac-israelsFree Image from public domain licenseEdward Jenner. Lithograph by P. R. Vignéron, 1824, after J. R. Smith, 1800. https://www.rawpixel.com/image/14001021/edward-jenner-lithograph-vigneron-1824-after-smith-1800Free Image from public domain licenseSir James Edward Smith. Stipple engraving by F. C. Lewis, 1816, after W. Lane. https://www.rawpixel.com/image/13976850/sir-james-edward-smith-stipple-engraving-lewis-1816-after-laneFree Image from public domain licenseThomas Joseph Pettigrew. Stipple engraving by W. & F. Holl after H. Room. https://www.rawpixel.com/image/14013360/thomas-joseph-pettigrew-stipple-engraving-holl-after-roomFree Image from public domain licensePortrait of Baron David Hendrik Chassé, Lieutenant-General (1832) by Jan Willem Pieneman https://www.rawpixel.com/image/13742037/image-face-person-artFree Image from public domain licensePortrait of Jacob Lescailje, Bookdealer and Poet in Amsterdam (1732 - 1771) by Jan Maurits Quinkhard https://www.rawpixel.com/image/13796039/image-face-person-artFree Image from public domain licenseAlbert Richard Smith. Engraving by D. J. Pound after J. Mayall. https://www.rawpixel.com/image/13994861/albert-richard-smith-engraving-pound-after-mayallFree Image from public domain licenseMuseum Wormianum. Seu historia rerum rariorum, tam naturalium, quam artificialium, tam domesticarum, quam exoticarum, quae… https://www.rawpixel.com/image/13979763/image-cartoon-face-personFree Image from public domain licenseCharles Robert Darwin, aged 40. Lithograph by T. H. Maguire, 1849. https://www.rawpixel.com/image/14012284/charles-robert-darwin-aged-40-lithograph-maguire-1849Free Image from public domain licenseA girl and a dog walk through a hall lined with suits of armour. Wood engraving by H. Linton after F. Dadd. https://www.rawpixel.com/image/13978141/image-dog-cartoon-faceFree Image from public domain licenseA macro shot of a hairy caterpillar climbing down a twig in El Salado. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3294456/free-photo-image-caterpillar-straw-andrenaFree Image from public domain licenseBernard le Bovier de Fontanelle. Line engraving by T. Cook after P. Savart. https://www.rawpixel.com/image/13983740/bernard-bovier-fontanelle-line-engraving-cook-after-savartFree Image from public domain licenseZingende oude vrouw (1733 - c. 1775) by Gottlieb Heiss II, Gottlieb Heiss II and Keizerlijk hof https://www.rawpixel.com/image/13763751/image-paper-cartoon-faceFree Image from public domain licenseCharles Lesseps, journaliste by Nadar Gaspard Félix Tournachon https://www.rawpixel.com/image/14271678/charles-lesseps-journaliste-nadar-gaspard-felix-tournachonFree Image from public domain licenseSir William Lawrence. Line engraving by E. R. Whitfield, 1842, after H. W. Pickersgill, 1841. https://www.rawpixel.com/image/13993655/image-face-person-artFree Image from public domain licensePark Ranger Heather Basak at Palette Spring by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4226032/photo-image-face-public-domain-natureFree Image from public domain licensePanoramic view of spring & nature. Original public domain image from Flickr https://www.rawpixel.com/image/3309708/free-photo-image-cc0-creative-commonsFree Image from public domain licenseA young woman with folded hands giving thanks to heaven, an older woman points to a crowd carrying a young man wrapped in a… https://www.rawpixel.com/image/14004480/image-cartoon-face-handsFree Image from public domain licenseFig. 45 by Guillaume Benjamin Duchenne and Adrien Alban Tournachon https://www.rawpixel.com/image/14317034/fig-guillaume-benjamin-duchenne-and-adrien-alban-tournachonFree Image from public domain licenseCountess Hélène de Pourtalès by Nadar Gaspard Félix Tournachon and Paul Nadar https://www.rawpixel.com/image/14271323/countess-helene-pourtales-nadar-gaspard-felix-tournachon-and-paul-nadarFree Image from public domain licensePortrait of Johan Rudolf Thorbecke, Minister of State and Minister of the Interior (1852) by Johan Heinrich Neuman https://www.rawpixel.com/image/13791198/image-face-person-artFree Image from public domain licenseSaint John the Evangelist. Lithograph by F. Piloty after A. Dürer. https://www.rawpixel.com/image/13971886/saint-john-the-evangelist-lithograph-piloty-after-durerFree Image from public domain licenseA shield containing a group portrait of various doctors and quacks, including Mrs Mapp, Dr. Joshua Ward and John Taylor.… https://www.rawpixel.com/image/14018265/image-cartoon-face-personFree Image from public domain licenseRoderick Impey Murchison. Photograph by Maull & Polyblank. https://www.rawpixel.com/image/13991429/roderick-impey-murchison-photograph-maull-polyblankFree Image from public domain licenseAugustus Joseph Pepper. Photograph by the London Stereoscopic & Photographic Company. https://www.rawpixel.com/image/14008849/photo-image-face-person-clothingFree Image from public domain licenseHenrik Andersen Tommar by Prince Roland Napoleon Bonaparte and G Roche https://www.rawpixel.com/image/14309937/henrik-andersen-tommar-prince-roland-napoleon-bonaparte-and-rocheFree Image from public domain licenseWilliam Davisson. Line engraving by P. Lombart after D. Schultz. https://www.rawpixel.com/image/14001107/william-davisson-line-engraving-lombart-after-schultzFree Image from public domain licenseMan making wood furniture, Puerto Princesa, Palawan, Philippines, July 2017. https://www.rawpixel.com/image/6198505/photo-image-public-domain-wood-personFree Image from public domain licenseSmallpox epidemic, Palestine. Photograph album, ca. 1922. https://www.rawpixel.com/image/14008375/smallpox-epidemic-palestine-photograph-album-ca-1922Free Image from public domain licenseSnow ranger Mt Hood National Forest 1960's. Original public domain image from Flickr https://www.rawpixel.com/image/4073337/photo-image-face-person-natureFree Image from public domain licenseSappeur der Infanterie (1835 - 1850) by Albertus Verhoesen and Johannes Paulus Houtman https://www.rawpixel.com/image/13748712/image-paper-cartoon-faceFree Image from public domain licenseLuigi, Count Serristori. Pencil drawing by C. E. Liverati, 1841. https://www.rawpixel.com/image/14004756/luigi-count-serristori-pencil-drawing-liverati-1841Free Image from public domain licenseNouvelles considérations sur le cautère actuel; apologie de ce puissant remède comparé avec les caustiques; réflexions… https://www.rawpixel.com/image/14004952/image-cartoon-person-artFree Image from public domain licensePortret van Peter Ernst (II), graaf van Mansfeld (1625 - 1636) by Robert van Voerst, Anthony van Dyck and Daniël Mijtens I https://www.rawpixel.com/image/13783457/image-paper-face-personFree Image from public domain licenseMikel Mikelsen Hetta by Prince Roland Napoleon Bonaparte and G Roche https://www.rawpixel.com/image/14309935/mikel-mikelsen-hetta-prince-roland-napoleon-bonaparte-and-rocheFree Image from public domain licenseSir John Bland-Sutton. Colour lithograph after "Elf" (L. Fildes). https://www.rawpixel.com/image/13986722/sir-john-bland-sutton-colour-lithograph-after-elf-l-fildesFree Image from public domain licenseA Jewish pedlar with a box of watches and jewelry offers them for sale to a young woman. Coloured engraving, 1827. https://www.rawpixel.com/image/13958469/image-cartoon-face-personFree Image from public domain licenseWilliam Frederick Haslau (or Frederick Belding Power). Photogravure, 1917. https://www.rawpixel.com/image/13999920/william-frederick-haslau-or-frederick-belding-power-photogravure-1917Free Image from public domain licenseNiels Gutumsen Labba by Prince Roland Napoleon Bonaparte and G Roche https://www.rawpixel.com/image/14311238/niels-gutumsen-labba-prince-roland-napoleon-bonaparte-and-rocheFree Image from public domain licenseHans Buling, an itinerant medicine salesman demonstrating his wares with the aid of a monkey. Colour line engraving after M.… https://www.rawpixel.com/image/13959656/image-cartoon-face-personFree Image from public domain licensePortrait of a Man with Large Moustache by Louis Fleckenstein https://www.rawpixel.com/image/14255523/portrait-man-with-large-moustache-louis-fleckensteinFree Image from public domain licenseSimeon holds the Christ child, who is holding an apple. Mezzotint by R. Earlom, 1778, after G. Farington after G. Reni. https://www.rawpixel.com/image/13974918/image-face-jesus-christ-personFree Image from public domain licenseBenjamin Franklin. Mezzotint after C. N. Cochin, junior, 1777. https://www.rawpixel.com/image/13978092/benjamin-franklin-mezzotint-after-cochin-junior-1777Free Image from public domain licenseCanton, Kwangtung province, China. Photograph, 1981, from a negative by John Thomson, 1869. https://www.rawpixel.com/image/14003981/photo-image-face-person-clothingFree Image from public domain licenseLachend meisje met pop (1768 - 1796) by Pieter de Mare and Jan Miense Molenaer https://www.rawpixel.com/image/13777200/lachend-meisje-met-pop-1768-1796-pieter-mare-and-jan-miense-molenaerFree Image from public domain licenseGold autumn leaf. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3302447/free-photo-image-autunm-bokeh-brown-backgroundFree Image from public domain licensePortrait of a Man, possibly Jan de Hooghe (1608-1682) (1658) by Paulus Hennekyn https://www.rawpixel.com/image/13794668/portrait-man-possibly-jan-hooghe-1608-1682-1658-paulus-hennekynFree Image from public domain licensePortrait of Maria Stuart (1662-95), the Future Wife of William III, as Child (1665 - 1675) by Richard Gibson and Nicolas… https://www.rawpixel.com/image/13794741/image-face-person-artFree Image from public domain licenseJohn Stuart, third Earl of Bute: portrait of him and allegory of his ministry. Stipple engraving by C. Watson, 1805, after… https://www.rawpixel.com/image/13985588/image-cartoon-face-personFree Image from public domain license