The document provides information on life in America during the late 19th century, including:
1) The expansion of industry and growth of big businesses like Standard Oil and U.S. Steel transformed the economy, while new inventions in transportation and communication modernized society.
2) Workers organized unions like the Knights of Labor to demand better treatment from employers, going on strikes, but often faced resistance from companies and legal hurdles.
3) Large numbers of immigrants arrived in America's growing cities during this time of industrialization, bringing both opportunities and challenges of cultural assimilation and urbanization.