Henry Ford was the first one to build cars which were fast, reliable(可靠的)and cheap. He was able to sell millions of them because he 'mass-produced' them, that is, he made a great many cars of exactly the same type. Henry Ford's father had hoped his son would become a farmer, but the young man did not like the idea and went to Detroit where he worked as a mechanic. By the time he was twenty-nine, in 1892, he had built his first car. The first 'Massproduced' car in the world, The famous 'Model T', appeared in 1908 five years after Henry had started his great Ford Motor's time, massproduction techniques have become common in industry and have reduced the price of a great many products which otherwise would be very expensive. The passage mainly tells us ______.