In the early years of the United States, Congress did not attempt to regulate immigration on the basis of national origin, but later it began to restrict immigration to the United States from particular countries. Which of the following countries was the first country to be the subject of a restriction on immigration from just that one country? a)China b)Russia (Soviet Union) c)Mexico d)Japan

In the early years of the United States, Congress did not attempt to regulate immigration on the basis of national origin, but later it began to restrict immigration to the United States from particular countries. Which of the following countries was the first country to be the subject of a restriction on immigration from just that one country? a)China b)Russia (Soviet Union) c)Mexico d)Japan