The Calmady Children (Emily, 1818–?1906, and Laura Anne, 1820–1894) https://www.rawpixel.com/image/9086181/the-calmady-children-emily-1818-1906-and-laura-anne-1820-1894Free Image from public domain licenseLouis XVI Entering Paris, October 6, 1789 by Jacques François Joseph Swebach https://www.rawpixel.com/image/9611874/image-royal-march-paris-louis-xviFree Image from public domain licenseEdward Jenner, with a view of Berkeley, Glos. Oil painting attributed to John Raphael Smith. https://www.rawpixel.com/image/13959506/image-face-cow-frameFree Image from public domain licenseEdward Jenner, with a view of Berkeley, Glos. Oil painting attributed to John Raphael Smith. https://www.rawpixel.com/image/13963457/image-face-cow-frameFree Image from public domain licenseDistinguished British men of science 1807-1808 assembled in the library of the Royal Institution, London. Mezzotint by W.… https://www.rawpixel.com/image/13975701/image-person-art-clothingFree Image from public domain licenseNapoleon standing next to Pope Pius VII, seated, his right foot resting on a cushion. Engraving by J.H. Robinson, 1848… https://www.rawpixel.com/image/13990776/image-face-person-artFree Image from public domain licenseElizabeth Gunning astride a cannon firing by the pen of her mother a blast of forged letters at the facade of Blenheim -… https://www.rawpixel.com/image/14015529/image-paper-cartoon-faceFree Image from public domain licenseDistinguished British men of science 1807-1808 assembled in the library of the Royal Institution, London. Mezzotint by W.… https://www.rawpixel.com/image/13981199/image-person-art-clothingFree Image from public domain licenseFriedrich Heinrich Alexander von Humboldt. Stipple engraving by A. Tardieu, 1823, after himself. https://www.rawpixel.com/image/13990211/image-face-person-artFree Image from public domain licenseThe distinguished men of science 1807-8: a key to the identities of the sitters. Photograph of engraving by W. Walker, 1862… https://www.rawpixel.com/image/14011458/image-cartoon-face-personFree Image from public domain license