The assembly line was perfected by _______________.

The assembly line was perfected by Henry Ford. He is widely recognized for revolutionizing manufacturing processes in the early 20th century, particularly with the introduction of the moving assembly line at the Ford Motor Company. This system allowed for the mass production of automobiles and significantly reduced the time it took to assemble a vehicle from more than 12 hours to just about 90 minutes. Ford's innovations made cars more affordable for the average American and contributed to the rise of the automobile culture in the United States. His use of standardized parts and efficient workflow management set the foundation for modern manufacturing techniques, influencing industries beyond just automotive production.