Assembly Line

The concept of dividing production into sequential stages was not new in 1913. Venetian shipbuilders at the Arsenal had used a form of assembly-line production as early as the sixteenth century, and the Portsmouth Block Mills in England mechanized sequential production of pulley blocks for the Royal Navy around 1803. What Ford and his engineers, particularly Charles E. Sorensen and Clarence Avery, achieved at the Highland Park plant was the integration of a continuously moving line with interchangeable parts and standardized tasks, an arrangement that dictated the pace of work through the speed of the conveyor rather than through the judgment of the worker.

The results were immediate and staggering. Production time for a Model T chassis dropped from twelve hours and twenty-eight minutes to one hour and thirty-three minutes. By 1914, Ford's factories were producing more cars than all other manufacturers combined. The price of the Model T fell from $850 in 1908 to $260 by 1925, making automobile ownership accessible to millions of Americans. Worker turnover, however, was enormous. The monotony and pace of the line drove annual turnover rates as high as 370 percent in 1913, a crisis Ford addressed with the five-dollar day in January 1914.

The assembly line's influence extended far beyond manufacturing. Its logic of breaking complex work into simple, repeatable tasks performed by interchangeable workers became the template for office organization, food service, healthcare delivery, and education. The moving line made it possible for a person to contribute to a product without ever understanding how it worked, a structural innovation whose psychological consequences Erich Fromm would later describe as the separation of the worker from the meaning of the work.