The document discusses the political, economic, and cultural influences of immigration to the US between 1950-1980. Politically, Cuban refugees demonstrated opposition to communism and bolstered US global power. The Refugee Relief Act of 1953 and Immigration Act of 1965 defined refugees and adjusted status for Cubans. Economically, Mexican immigrants provided farm labor through programs like the Bracero Program. Culturally, the Spanish language grew substantially, Asian communities formed in cities, and churches proliferated.