This document provides an overview of topics related to electricity, social classes, and responses to labor in the late 19th century, including: 1) Discussions of Thomas Edison, Nikola Tesla, and George Westinghouse's contributions to electricity and the "Current War" between alternating and direct current. 2) Descriptions of the upper, middle, and working classes in this period as well as organized labor movements like the National Labor Union and Knights of Labor. 3) Accounts of major strikes in the 1870s-1890s such as the Great Railroad Strike of 1877, the Homestead Steel Strike, and the Pullman Strike, and labor leaders like Mother Jones.