Closeup group of diverse smiling kids grayscale https://www.rawpixel.com/image/1204/free-photo-image-smiling-child-african-kid-childrenView licenseThe Tama River at Ide, Yamashiro Province by Suzuki Harunobu https://www.rawpixel.com/image/9612173/the-tama-river-ide-yamashiro-province-suzuki-harunobuFree Image from public domain licenseThe First Day of Spring (Risshun), from the series Fashionable Poetic Immortals of the Four Seasons (Fūzoku shiki Kasen) https://www.rawpixel.com/image/9241056/image-clouds-paper-artFree Image from public domain licenseManuscript of Moses Maimonides. Colour photogravure, 1904. https://www.rawpixel.com/image/13958288/manuscript-moses-maimonides-colour-photogravure-1904Free Image from public domain license