Graphs and charts allow us to convey important historical information and trends in visual shorthand. Look at the graphs and charts in Chapter 23 as examples. First glance at the line graph "Economic Expansion, 1920-1929" on page 000713. What does it indicate about industrial production in the 1920s as compared to the prewar years? During which years of the 1920s did the economy go into a short-lived but sharp recession?

Next turn to page 000 720 and look at the line graph "The Automobile Age: Passenger Cars Registered in the United States, 1900-1992." Roughly how many cars were registered in this country in 1910, 1920, 1925, and 1930? Did the number of registered vehicles rise more sharply during the twenties or thirties? How do you account for this?

Finally, look at the table on page 000 739 dealing with the elections of the 1920s and early 1930s1920s. What does it indicate about American ethnic group voters and the Democratic party? Which was the only ethnic group that did not vote primarily Democratic by 1932? Why do you suppose that was?