Many things that middle-class Americans took for granted by the 1960s scarcely existed for the 139.9 million people who inhabited the forty-eight states in 1945 or for the 151.7 million in 1950. Consider a few of these things: supermarkets, malls, fast-food chains, residential air-conditioning, ranch-style homes, freezers, dishwashers, and detergents. Also ballpoint pens, hi-fis, tape recorders, long-playing records, Polaroid cameras, computers, and transistors. And four-lane highways, automatic transmissions and direction signals, tubeless tires, and power steering. In 1945 only 46 percent of
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