First Lady Michelle Obama meets with Prince Harry for tea to discuss the "Let Girls Learn" initiative and support for… https://www.rawpixel.com/image/4050872/image-public-domain-person-roomFree Image from public domain licenseRetired U.S. Army Staff Sgt. Michael Kacer, left, prepares for the 50-meter backstroke race during the swimming portion of… https://www.rawpixel.com/image/3317682/free-photo-image-olympic-london-runningFree Image from public domain licenseU.S. Army Capt. Kelly Elmlinger takes the lead in a wheelchair race during the 2016 Invictus Games in Orlando, Fla. May 10… https://www.rawpixel.com/image/3317770/free-photo-image-resilience-bike-disabledFree Image from public domain licenseA crowd gathered in Exeter Hall, London, to hear speakers on the abolition of the slave trade. Coloured engraving by J.… https://www.rawpixel.com/image/13970376/image-people-music-public-domainFree Image from public domain licenseThe Return to Court of the Four Graybeards of Mount Shang (left); Su Shi’s Visit to the Wind and Water Cave (right)… https://www.rawpixel.com/image/9087701/image-cave-painting-han-dynasty-japanese-artFree Image from public domain licenseTriclinium, Excavated in the House of Actaeon, Pompeii by Charles Frédéric Chassériau https://www.rawpixel.com/image/9085184/image-haiti-pompeii-pompeji-vintageFree Image from public domain licenseThe Repository of Arts, Literature, Commerce, Manufactures, Fashions, and Politics, 1st series, vol. 1 https://www.rawpixel.com/image/9330512/image-paper-arts-collageFree Image from public domain licenseFireworks explode over the opening ceremony for the 2016 Invictus Games in Orlando, Fla. May 8, 2016. https://www.rawpixel.com/image/8739574/photo-image-public-domain-fireworks-personFree Image from public domain licenseBorder Designs for the Mortlake "Acts of the Apostles" Tapestries https://www.rawpixel.com/image/12490521/border-designs-for-the-mortlake-acts-the-apostles-tapestriesFree Image from public domain license[Princes Street corner]. From the album: Photograph album - London (1920s) by Harry Moult. https://www.rawpixel.com/image/13028742/image-paper-person-skyFree Image from public domain license