American Indian medicine illustration https://www.rawpixel.com/image/7621986/american-indian-medicine-illustrationView licenseTowoccono Warrior, vintage man illustration by John Mix Stanley. Remixed by rawpixel. https://www.rawpixel.com/image/12388573/image-person-horse-artView licenseDiverse volunteers wearing mask, watercolor illustration https://www.rawpixel.com/image/6257927/image-face-aesthetic-maskView licenseGroup portrait of Robert Simson, George E.W. Couper, Mrs. Elizabeth Hutchinson Banks, and Major John Sherbrooke Banks… https://www.rawpixel.com/image/14314623/image-face-person-bookFree Image from public domain license