The reason there was a decrease in immigration from 1911 - 1930 was because of A. Increased restrictions on immigration by the Federal Government
From the period before the First World War began up till 1930, some Americans began to call for a limit to immigration.
The federal government responded by limiting immigration through ways like:
- the Quota system - only a certain number of people were allowed in from certain countries annually
- literacy tests - immigrants had to pass literacy tests to be allowed into the country
This led to a decrease in the number of people being allowed into the U.S. and so led to a decrease in immigration.
We can therefore conclude that the efforts of the Federal government were the reason the immigration rates of those years decreased.
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