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Henry Ford began making the Model T and over 10,000 cars were produced in the first year.
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Ford Motor Company created an assembly line to increase the production of cars.
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Francis Wright Davis created the first power steering system to make it easier for drivers to turn their steering wheels.
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A Delaware company created the first flashing turn signals using wires and electricity. This increased the safety of drivers by allowing them to know what other drivers are doing around them.
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Nash Motor Company creates the first air conditioning system for cars to provide more comfot to the drivers.
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Ralph Teeter was a blind man who noticed by listening to cars drive across the highway that they drive at different speeds, so he came up with the idea to add a system to keep the speed the same while traveling. This created a convience for drivers because they no longer had to worry about their speed changing while driving.
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Airbags are first introduced in the 70s and more and more car start putting them in for safety of the drivers.