AdvertisementThis Simple Puzzle Test Sealed The Fate Of Immigrants At Ellis IslandMay 17, 2017Audie CornishfacebookEmailA wooden puzzle in the silhouette of a human head might look fun if the stakes weren't so high. A doctor named Howard Knox invented The Feature Profile Test — the formal name for this puzzle —after officials struggled to administer IQ tests to immigrants because of issues with language and literacy. (Art + Commerce/Smithsonian Magazine)