In 1900, there were just 8,000 automobiles registered in the United States.
By 1910, there were nearly half a million cars. By the start of the Great Depression in 1929 it had skyrocketed to 23 million.
Just 2% of households owned a car in 1910. By 1940, it was more than 90%.
Today, 70% of U.S. households have access to two or more vehicles:
There were two main reasons vehicle ownership exploded higher in the early-20th …