There were many factors that cause to change the American society. In 1920s the American economy began to become strong and the automobile introduced a new way of life to America and pushed America forward. In addition, the American people enjoyed the highest standard of living and they were able to afford luxury items. The motor car industry was the new form industry and it used the method of mass production and assembly line. Henry Ford was a pioneer who produced a car for ordinary family and manufactured the first Model T and reduced the prices by mass production. Therefore, the market became as important as production, and the automobile maker began to advertise for new vehicles and eager the customers to buy a new cars. For this reason