Thomas Young. Stipple engraving by G. Adcock, 1831, after Sir T. Lawrence. https://www.rawpixel.com/image/13988480/thomas-young-stipple-engraving-adcock-1831-after-sir-lawrenceFree Image from public domain license"Sophia," Vaudeville Theatre./[Couple in costume, standing] by Window and Grove https://www.rawpixel.com/image/14305912/sophia-vaudeville-theatrecouple-costume-standing-window-and-groveFree Image from public domain licenseA girl wearing a hairnet, with plaited hair: the back of her head: a vignetted head-and-shoulders portrait. Photograph by O.… https://www.rawpixel.com/image/13974938/image-face-person-artFree Image from public domain licenseAilanthus Webworm Moth on butterfly milkweed flower. Free public domain CC0 photo. https://www.rawpixel.com/image/6202133/photo-image-flower-public-domain-natureFree Image from public domain licenseUllia Eliowna by Prince Roland Napoleon Bonaparte and G Roche https://www.rawpixel.com/image/14311140/ullia-eliowna-prince-roland-napoleon-bonaparte-and-rocheFree Image from public domain licenseFemale lion profile with savanna grass in background. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3288510/free-photo-image-cougar-horse-animalFree Image from public domain licenseBenjamin Franklin. Colour aquatint by P. M. Alix, 1791, after C. P. A. van Loo. https://www.rawpixel.com/image/14011351/benjamin-franklin-colour-aquatint-alix-1791-after-van-looFree Image from public domain licenseRobert B. Hall by James Earle McClees and Julian Vannerson https://www.rawpixel.com/image/14318015/robert-hall-james-earle-mcclees-and-julian-vannersonFree Image from public domain licenseA Brahmin praying to Vishnu, pouring water on the saligram. Lithograph. https://www.rawpixel.com/image/13959628/brahmin-praying-vishnu-pouring-water-the-saligram-lithographFree Image from public domain licenseSir John Fisher. Oil painting by John Prescott Knight, 1842. https://www.rawpixel.com/image/13996571/sir-john-fisher-oil-painting-john-prescott-knight-1842Free Image from public domain licenseA seedy looking intern. Colour process print by C. Josef, c. 1930. https://www.rawpixel.com/image/13954936/seedy-looking-intern-colour-process-print-josef-1930Free Image from public domain licenseThe head of a man with a moustache and beard: above, with some of the skin removed; below, showing part of the brain. Line… https://www.rawpixel.com/image/14000944/image-cartoon-face-personFree Image from public domain licenseSir James Edward Smith, with a vignette of the pursuit of the ship containing the Linnean collection by order of the King of… https://www.rawpixel.com/image/14008646/image-cartoon-face-personFree Image from public domain license3rd Air Support Operations Squadron conducts airborne training at JBERU.S. Air Force Senior Airman Jonathan Valdes Montijo… https://www.rawpixel.com/image/4224731/photo-image-face-public-domain-peopleFree Image from public domain licensePortret van koning Karel I van Engeland (1640 - 1670) by Joannes Meyssens, Anthony van Dyck and Joannes Meyssens https://www.rawpixel.com/image/13776550/image-paper-face-personFree Image from public domain licenseJohn Radcliffe. Line engraving by M. Burghers after Sir G. Kneller, 1710. https://www.rawpixel.com/image/14009271/john-radcliffe-line-engraving-burghers-after-sir-kneller-1710Free Image from public domain licenseGeography: glaciers. Coloured wood engraving by C. Whymper. https://www.rawpixel.com/image/13953240/geography-glaciers-coloured-wood-engraving-whymperFree Image from public domain licenseVier putti met een hond in een mand van rozen op een kussen (c. 1788 - c. 1805) by Jean Baptiste Vérité, Pierre Bouillon and… https://www.rawpixel.com/image/13770403/image-dog-paper-roseFree Image from public domain licenseHazard Tree Removal: hazard tree team by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4226031/photo-image-face-public-domain-treeFree Image from public domain licenseA Scottish musical shoemaker: he sits on a bench and contemplates the sole of a shoe he is holding; on the floor and resting… https://www.rawpixel.com/image/13971126/image-cartoon-face-personFree Image from public domain licenseArthur Cayley. Wood engraving by R. Taylor, 1883, after T.D. Scott. https://www.rawpixel.com/image/13995159/arthur-cayley-wood-engraving-taylor-1883-after-td-scottFree Image from public domain licensePieter Mijer (1812-81). Gouverneur-generaal van Nederlands Oost Indië (1875) by Johan Heinrich Neuman https://www.rawpixel.com/image/13742623/image-face-person-artFree Image from public domain licenseTweeluik met familie Van Neck (1809 - 1900) by anonymous and J Smulders https://www.rawpixel.com/image/13764697/tweeluik-met-familie-van-neck-1809-1900-anonymous-and-smuldersFree Image from public domain licenseA young post boy is watched by another as he attempts to see what is inside an envelope. Chromolithograph. https://www.rawpixel.com/image/13951740/image-dog-cartoon-faceFree Image from public domain licenseMrs Robert Grieve (Jane Sommerville). Photograph by William E. Gray. https://www.rawpixel.com/image/13980540/mrs-robert-grieve-jane-sommerville-photograph-william-grayFree Image from public domain licenseMan met een pijp (de Reuk) (1660 - 1743) by anonymous, Jan Verkolje I and Petrus Staverenus https://www.rawpixel.com/image/13762097/image-paper-face-personFree Image from public domain licensePortret van Johannes Wesenhagen (1743-1803) (1781) by Antoine Maucourt https://www.rawpixel.com/image/13796139/portret-van-johannes-wesenhagen-1743-1803-1781-antoine-maucourtFree Image from public domain licenseNepal: military men: two seated, one standing. Photograph by Clarence Comyn Taylor, ca. 1860. https://www.rawpixel.com/image/13971180/photo-image-person-clothing-menFree Image from public domain licenseThomas Parr, said to have lived 152 years, with the three fates. Engraving by T. Dale, 1821, after Sir P.P. Rubens. https://www.rawpixel.com/image/13984171/image-face-person-artFree Image from public domain licenseDe dwerg Gustavus Weinberger als een geestelijke met een beker, ca. 1710 (1705 - 1715) by Martin Engelbrecht https://www.rawpixel.com/image/13745882/image-paper-cartoon-faceFree Image from public domain licensePolina Andreevna Petrishcheva. Photograph by L.J. Bruce-Chwatt. https://www.rawpixel.com/image/13973774/polina-andreevna-petrishcheva-photograph-lj-bruce-chwattFree Image from public domain licenseSir James Prior. Lithograph by W. Drummond, 1835, after E. U. Eddis. https://www.rawpixel.com/image/13979310/sir-james-prior-lithograph-drummond-1835-after-eddisFree Image from public domain licenseTristan en Isolde in omhelzing (1896) by Rogelio de Egusquiza https://www.rawpixel.com/image/13740522/tristan-isolde-omhelzing-1896-rogelio-egusquizaFree Image from public domain licenseKeep smiling. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3295351/free-photo-image-gold-circle-photography-black-and-gold-backgroundFree Image from public domain license