Abelard and Heloise: monument at the monastery of La Trappe, France. Coloured aquatint by J. Clark, 1818, after W.D.… https://www.rawpixel.com/image/13970545/image-plant-person-grassFree Image from public domain license Wallis's tour through the United Kingdom of England, Scotland and Ireland, a new geographical game… https://www.rawpixel.com/image/8905802/image-vintage-hand-public-domainFree Image from public domain licenseSaint Pantaleon (Panteleion, Panteleimon). Engraving by Theodosios Rosos, 1818. https://www.rawpixel.com/image/13984945/saint-pantaleon-panteleion-panteleimon-engraving-theodosios-rosos-1818Free Image from public domain licenseA patient sits helplessly in a chair while proponents of different medicines brawl with each other, overturning tables and… https://www.rawpixel.com/image/13999310/image-paper-cartoon-faceFree Image from public domain licenseA patient sits helplessly in a chair while proponents of different medicines brawl with each other, overturning tables and… https://www.rawpixel.com/image/13978865/image-cartoon-person-medicinesFree Image from public domain license