Final answer:
The Census data from 1920 to 1930 shows a shift in the percentages of the foreign-born population in the United States, with declining immigration from Europe and increasing immigration from Asia and Latin America.
Step-by-step explanation:
The Census data from 1920 to 1930 shows the changing percentages of the foreign-born population in the United States. During this period, there was a shift in the countries of origin for immigrants. While immigration from Europe declined, immigration from Asia and Latin America increased.
For example, according to the Census data, the German-born population grew from 584,000 to nearly 2.7 million, and the Irish-born population grew from 961,000 to 1.6 million. In contrast, the number of Chinese immigrants was much less numerous but still significant.
This shift in immigration patterns from Europe to Asia and Latin America during the 1920s can be attributed to various factors, including changes in immigration policies like the Emergency Immigration Act of 1921 and the National Origins Act of 1924. These acts introduced numerical limits and quotas on European immigration, which reduced the share of eligible southern and eastern Europeans.