PROMPT: The United States saw waves of immigration and several changes in immigration law from the mid-1860s to the late 20th century.

PROMPT: The United States saw waves of immigration and several changes in immigration law from the mid-1860s to the late 20th century. Discuss the impact immigration, immigration laws, and the backlash to immigration had on the social and economic development of the United States. Consider ethical arguments and civics in your discussion of immigration and reaction to immigration. Also analyze change over time in your response.