The invention of the typewriter led to more women who became employed in offices. They were found to be better typists than men. <span>A few women had been going into medicine since Elizabeth Blackwell became the first woman to graduate from a US medical school in 1849 these numbers increased after 1849.</span>
<span>Women had been working in factories since the Industrial Revolution started due to having small hands that made it easy to do smaller tasks, and had been going into teaching in large numbers since the 1840s. Many women worked as sales clerks, and nursing had been an increasingly popular occupation over time.</span>
The most obvious signs of change were the rise of a consumer-oriented economy and of mass entertainment, which helped to bring about a "revolution in morals and manners."
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I think it's <em>Import substitution industrialization</em>, I may be wrong.
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The muckrakers played a highly visible role during the Progressive Era. Muckraking magazines—notably McClure's of the publisher S. S. McClure—took on corporate monopolies and political machines, while trying to raise public awareness and anger at urban poverty, unsafe working conditions, prostitution, and child labor.