By their centennial of 1876, Americans were rapidly developing their own unique society. The most important advances
in industrialization came in the last third of the nineteenth century. John D. Rockefeller:oil is incorrectly associated with
the industry he helped to found. After 1870, the measure of a nation's industrial progress was determined by the production
of steel. As a result of the proliferation of patents in the late nineteenth century, American life radically changed. In
comparison to male workers, female workers were not considered important as income earners. The Knights of Labor failed because
it could not provide effective national leadership. The Haymarket Square riot weakened the national labor movement. The two
transcontinental railroad lines met at Promontory, Utah.