Hello,
I am reading "Can We Still Afford to Be a Nation of Immigrants?" by David M. Kennedy.
(This part can be found in the link above.)
In the past three decades, since the passage of the Immigration and Nationality Act Amendments of 1965, the first major revision in American immigration statutes since the historic closure of immigration in the 1920s, some 20 million immigrants have entered the United States. To put those numbers in perspective: prior to 1965 the period of heaviest immigration to the United States was the quarter century preceding the First World War, when some 17 million people entered the country, roughly half the total number of Europeans who migrated to the United States in the century after 1820, (along with several hundred thousand Asians).
A quarter century is 25 years, yes. The highest rate of immigration to the US was during the 25 year period before WWI. This statement only refers to immigration rates prior to 1965.
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