At the start of the 20th century the nation was at a critical turning point. During the twenty years from 1900 to 1920 technological, political, economic, and social developments transformed the country in ways that still affect us today. Select one reason why these were “pivotal decades” and analyze the events associated with its historical significance. Provide support for your opinion, using information from a scholarly source. Also, incorporate and cite in APA format one of the primary sources in your response that you found in the textbook.