The document summarizes political and social changes in the United States during the Gilded Age from 1876-1900. Millions of immigrants arrived from Europe and Asia, fleeing poverty and persecution. They faced difficult journeys and were processed through stations like Ellis Island. Nativist groups opposed immigration, leading to restrictions like the Chinese Exclusion Act. Political machines controlled cities by providing jobs and services to immigrants in exchange for votes. Corruption was rampant, as seen with Tammany Hall and the Tweed Ring. The Gilded Age was a period of vast wealth inequality and the growth of "robber barons" but also the beginning of reforms like civil service laws.