The Rise and Fall of American Growth: The U.S. Standard of Living Since the Civil War: Summary & Key Insights

Before 1870, the United States was still a young nation, largely rural and agrarian. Economic life revolved around physical labor—on farms, in small workshops, or along trade routes shaped by waterways. The tools of everyday life had changed remarkably little from those of medieval Europe. Most households lacked basic comforts such as indoor plumbing, running water, or consistent heat. Speed of communication and transportation was bound by the pace of a horse. Incomes were low and uneven, diets were limited, and illness or injury could swiftly drag a family into destitution.

What existed, though, was promise: an abundance of land, natural resources, and a spirit of invention nurtured in the workshops and small factories of a nation expanding westward. The era before 1870 produced vital infrastructure—the railroad, the telegraph, and standardized industrial production—but the great interconnected wave of technological breakthroughs had yet to arrive.

If we imagine ourselves standing on the threshold of 1870, we stand at the edge of a world about to erupt into transformation. Education was expanding, cities were growing, and immigration was bringing new skills and energy. The platform was set for what would become the most dramatic century of sustained productivity growth and material progress in human history.

Between 1870 and 1900, and then accelerating in the early 20th century, a set of innovations came forth that I term ‘Great Inventions.’ These were not mere gadgets but entire systems of transformation: electricity, the internal combustion engine, modern communications, running water, sewage systems, and later, health and chemical sciences. Unlike digital technologies, these inventions reshaped every hour of human life.

The electric light replaced dangerous oil lamps, altering sleep patterns and extending productive hours. Running water freed women from the backbreaking labor of hauling and boiling water, while the flush toilet radically improved hygiene and reduced disease. The internal combustion engine gave physical mobility to ordinary citizens, collapsing the effective size of the nation and making suburban life possible. And with the rise of telephony and radio, information flowed as never before.

Each of these advances interacted with the others, producing a multiplying effect across sectors. Factories became more efficient with electric power. Hospitals became safer. Food distribution improved through refrigeration. This was not linear improvement—it was a synergistic revolution in how humans interacted with their material world. It is difficult for us today, accustomed to modern comfort, to imagine how radical that change was. Those technological systems formed the true foundations of modern economic growth.