John Gregory. Stipple engraving by J. Beugo, 1787, after F. Cotes, 1764. https://www.rawpixel.com/image/13973754/john-gregory-stipple-engraving-beugo-1787-after-cotes-1764Free Image from public domain licenseWilliam Beattie. Stipple engraving by T. Rogers after H. Room. https://www.rawpixel.com/image/13979648/william-beattie-stipple-engraving-rogers-after-roomFree Image from public domain licenseFrançois Ferdinand d'Orleans (1818 - 1900), Prince of Joinville, Rear-admiral by Camille Silvy https://www.rawpixel.com/image/14312412/image-face-person-artFree Image from public domain licensePortraits, memoirs, and characters, of remarkable persons, from the Revolution in 1688 to the end of the reign of George II.… https://www.rawpixel.com/image/13981354/image-face-persons-artFree Image from public domain licenseJohn Brown [Bruno]. Stipple engraving by J. Thomson after J. Donaldson. https://www.rawpixel.com/image/13972577/john-brown-bruno-stipple-engraving-thomson-after-donaldsonFree Image from public domain licenseWilliam Stokes. Photograph by London Stereoscopic & Photographic Company. https://www.rawpixel.com/image/13992257/william-stokes-photograph-london-stereoscopic-photographic-companyFree Image from public domain licenseRoseate Spoonbill (2016) by Chris Wellner. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3060568/free-photo-image-spoonbill-bird-animalFree Image from public domain licenseStaande man met verrekijkertje (1811 - 1873) by Pieter van Loon https://www.rawpixel.com/image/13787997/staande-man-met-verrekijkertje-1811-1873-pieter-van-loonFree Image from public domain licenseAnna de Chaumont by Achille Devéria, Théodule Devéria and Octave Benoist https://www.rawpixel.com/image/14271611/anna-chaumont-achille-deveria-theodule-deveria-and-octave-benoistFree Image from public domain licenseUniform van de officieren van de lansiers, 1845 (1845) by Louis Salomon Leman and Louis Salomon Leman https://www.rawpixel.com/image/13745727/image-paper-horse-cartoonFree Image from public domain licenseFamine in India: five emaciated children; a girl sitting and four boys lying on a mat. Photograph attributed to Willoughby… https://www.rawpixel.com/image/14006180/photo-image-face-person-artFree Image from public domain licenseHenry M. Shaw by James Earle McClees and Julian Vannerson https://www.rawpixel.com/image/14317347/henry-shaw-james-earle-mcclees-and-julian-vannersonFree Image from public domain licenseFrederick Prince of Wales. Engraving by J. Houbraken after C. Boit, ca. 1727. https://www.rawpixel.com/image/13979055/frederick-prince-wales-engraving-houbraken-after-boit-ca-1727Free Image from public domain licenseAimee R. Cushera (Mother) Kraus [young female child] by Bishop and Company https://www.rawpixel.com/image/14309015/aimee-cushera-mother-kraus-young-female-child-bishop-and-companyFree Image from public domain licenseThe circulatory system: dissection of the neck and thorax of a man, with aorta, arteries and veins indicated in red and… https://www.rawpixel.com/image/14014307/image-cartoon-face-personFree Image from public domain licenseThe life of Samuel Johnson, L.L.D. Comprehending an account of his studies, and numerous works, in chronological order : a… https://www.rawpixel.com/image/13976643/image-paper-cartoon-faceFree Image from public domain licenseTwo men catching partridges by trapping them in a net and letting a dog track the birds down. Etching by W. S. Howitt. https://www.rawpixel.com/image/14020608/image-dog-horse-cartoonFree Image from public domain licenseButterfly close up, green leaf. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297962/free-photo-image-admiral-animal-animals-images-picturesFree Image from public domain licenseHenry Waldron by James Earle McClees and Julian Vannerson https://www.rawpixel.com/image/14317493/henry-waldron-james-earle-mcclees-and-julian-vannersonFree Image from public domain licenseUnidentified man, printed in vignette-style by S G Sheaffer and Company https://www.rawpixel.com/image/14307682/unidentified-man-printed-vignette-style-sheaffer-and-companyFree Image from public domain licenseJohn Hunter. Line engraving by J. Corner, 1793, after J. Tassie, 1791. https://www.rawpixel.com/image/14016313/john-hunter-line-engraving-corner-1793-after-tassie-1791Free Image from public domain licenseInterior of Restaurant [Chinatown, San Francisco] by Carleton Watkins https://www.rawpixel.com/image/14309986/interior-restaurant-chinatown-san-francisco-carleton-watkinsFree Image from public domain licensePortrait of a Seated Man with Graying Muttonchop Whiskers by William Edward Kilburn https://www.rawpixel.com/image/14276004/photo-image-papers-clouds-faceFree Image from public domain licensePortrait of Georgina Benoist, leaning on a table by Hippolyte Bayard https://www.rawpixel.com/image/14312819/portrait-georgina-benoist-leaning-table-hippolyte-bayardFree 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 licenseHenry M. Phillips by James Earle McClees and Julian Vannerson https://www.rawpixel.com/image/14316676/henry-phillips-james-earle-mcclees-and-julian-vannersonFree Image from public domain licenseThe Broken Engagement by François Claudius Compte-Calix https://www.rawpixel.com/image/14275534/the-broken-engagement-francois-claudius-compte-calixFree Image from public domain licensePortret van hertog Alessandro Farnese van Parma (1598 - 1602) by Harmen Jansz Muller and Harmen Jansz Muller https://www.rawpixel.com/image/13776685/image-paper-face-personFree Image from public domain licenseWilliam Stevenson, a hoarding beggar. Stipple engraving by R. Cooper, 1821. https://www.rawpixel.com/image/14015782/william-stevenson-hoarding-beggar-stipple-engraving-cooper-1821Free Image from public domain licenseGeorges Louis Leclerc, Comte de Buffon. Stipple engraving, 1828. https://www.rawpixel.com/image/13976973/georges-louis-leclerc-comte-buffon-stipple-engraving-1828Free Image from public domain licenseFree Santa Claus miniature image, public domain Christmas CC0 photo. https://www.rawpixel.com/image/5927537/photo-image-background-xmas-public-domainFree Image from public domain licenseCheeseboro Sunset. Original public domain image from Flickr https://www.rawpixel.com/image/3394480/free-photo-image-sun-mountain-sunrise-nature-hikingFree Image from public domain licenseGwendoline Syrie Maud Wellcome (née Barnardo), Syrie Maugham. Photograph by Nitscher, 1903. https://www.rawpixel.com/image/13963955/image-face-person-artFree Image from public domain licensePortret van Pieter Jelles Troelstra (1926) by Jacques Jeichienus Ottens https://www.rawpixel.com/image/13765436/portret-van-pieter-jelles-troelstra-1926-jacques-jeichienus-ottensFree Image from public domain licensePierre-François, Baron de Percy. Lithograph by J. Boilly, 1821. https://www.rawpixel.com/image/14005140/pierre-francois-baron-percy-lithograph-boilly-1821Free Image from public domain licenseGiant Panda (2006) by Ann Batdorf. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3060872/free-photo-image-bear-animalFree Image from public domain licenseArtistic poses plate III: a woman standing. Lithograph by Robert J. Colenso. https://www.rawpixel.com/image/13952399/artistic-poses-plate-iii-woman-standing-lithograph-robert-colensoFree Image from public domain licenseCosmetic surgery: the back of a man's head, showing his fleshy ears: before surgery. Photograph, 1909 . https://www.rawpixel.com/image/14001087/photo-image-face-person-plasticFree Image from public domain license(June 19, 2020) Acting Homeland Security Secretary Chad Wolf traveled to Oakland, CA to attend the funeral of FPS PSO David… https://www.rawpixel.com/image/4046498/photo-image-face-people-roomFree Image from public domain licenseChrist as Salvator Mundi. Process print after J. Lafarge, 1899. https://www.rawpixel.com/image/13998303/christ-salvator-mundi-process-print-after-lafarge-1899Free Image from public domain licenseLouis Pasteur, proponent of the 'germ' theory of disease. Oil painting after A. Edelfelt. https://www.rawpixel.com/image/13951793/image-face-frame-personFree Image from public domain licenseElectric guitar, close up shot in black and white. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3303761/free-photo-image-electric-bass-guitar-cc0Free Image from public domain licenseSaint Francis of Assisi having a vision of an angel playing the violin. Etching by F. Vanni. https://www.rawpixel.com/image/14010031/image-paper-angel-cartoonFree Image from public domain licenseJohann Wolfgang von Goethe. Etching by W. Unger after G. O. May, 1779. https://www.rawpixel.com/image/14020683/johann-wolfgang-von-goethe-etching-unger-after-may-1779Free Image from public domain licenseLion family on the ground. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3304962/free-photo-image-africa-animal-animals-images-picturesFree Image from public domain license