The 1904 World's Fair, St. Louis, Missouri: the baby incubators building (right) on the Pike (an avenue of amusements)… https://www.rawpixel.com/image/13958424/photo-image-person-sky-waterFree Image from public domain licenseMorning commuters of London https://www.rawpixel.com/image/1199/free-photo-image-businessman-business-people-crowdView licenseBanked thick against the walls was the motley throng of warriors and their wives by Edward S Curtis https://www.rawpixel.com/image/14250313/photo-image-face-person-artFree Image from public domain licenseFond relatives throng the Sicilian town square to greet their sons and sweethearts and uncles and nephews who were released… https://www.rawpixel.com/image/12296500/photo-image-face-hand-personFree Image from public domain license