American physician and humanitarian John Gorrie built a refrigerator in 1844 to be able to cool air. His refrigerator made ice, which he hung from the ceiling in a basin. Gorrie is the creator of ice cubes, even though he was not trying to cool drinks. Instead, he used the ice to cool the room's temperature. During that time, people thought that bad air quality made people sick. So, to help treat sickness, he advocated for the draining of swamps and the cooling of sickrooms.