For example, Amos n’ Andy, a famous radio show was sponsored by Pepsodent toothpaste. This list of ordinary inventions to us include; band aids, drive-in restaurant, lie detector, convertible, audiometer, traffic signal, automatic watch, bulldozer, instant camera, loudspeaker system, compass, moviola(and movie editor), radio altimeter, garage door opener, bread slicer, juke box, garbage disposal, pressure washer, electric razor, sunglasses, and frozen food. Some of this things like basic and are used everyday, however most of these things made life fast for the citizens of the 1920s so they could spend time on other things. More advance technology would include washing machine, television, electrical television system, and liquid rocket. Without some of these things life would not be the same in the 21st century. Not only inventions, but also the medicine during this time era was advancing for example deaths due to Diphtheria were decreasing due to new immunizations. The population in the US increased because of new interest in nutrients, caloric consumption,and physical