Many black smiths left. Meet one here in San Francisco. Good evening and welcome to a second look im julie haener. This month marks the 100th anniversary of the industrial revelation. It was in 1913 that henry ford began using the Assembly Line to manufacture the model t. In 2000, Bob Mackenzie lookedded at the significance looked at the significance of that change. Reporter maneuvering your horse and buggy down Market Street was not easy. Of course you had to be rich to own an automobile which didnt add to their popularity with everyone else. As the second decade took place, the auto owned the streets but it was still only the rich that owned them. Henry ford changed all that. Instead of making cars one at a time, the ford factory mass produced them with an idea called the Assembly Line. Each worker did the same job over and over enabled the plant tocrank out a new car every 15 minutes. At last, the ford could take the roads. Northern californians could climb the mountain to yosemite.