How shall we judge the contributions to American society of the great financiers and industrialists at the end of the nineteenth and beginning of the twentieth centuries? In this lesson, students explore a variety of primary historical sources to uncover some of the less honorable deeds as well as the shrewd business moves and highly charitable acts of the great industrialists and financiers, men such as Andrew Carnegie, J. Pierpont Morgan, John D. Rockefeller, and Cornelius Vanderbilt.